O-RING SEAL

SAN YONG SEAL O-RING SEAL PRODUCT BROCHURE

SOURCE FACTORY/TOP-QUALITY SEALING

河北三永新材料科技有限公司Hebei Sanyong New Materials Technology Co., LTd.

Company Profile >>>

Hebei Sanyong New Materials Technology Co.,LTDocated in Wencheng Development Zone,Jing County,HengshuiCity,HebeiProvince,ithasamodernproductionbase coveringanareaofl2o square meters.With25yearsof industryexperience inthesealingparts field,ithas developed intoatrusted sealing parts production and customization service provider for global customers.

The company focuseson the core business of sealing parts.Its products are sold farand wide in the global market andare widelyused inkey industrial fieldssuchasvalves,metallrgy,petrochemicals,and mechanical parts.Themain products includevalvesealingparts,specialsealingparts formetalurgy,corosion-resistantsealingpartsforpetrochemicals, mechanical partssealingparts,as wellasaseriesofproductssuchas CNC numericalcontrolcutingplates,inflatable sealing rings,and fabric-reinforced diaphragms.

Thecompany strictlyadheres to international standards and has successfully passed ISO9ool quality management systemcertifcation,CEcertiication,OHSertificationndFAcertiicaion,stablsingafull-processaaded quality control system.Relyingon itsown production factory,allprocesses fromraw material selectionto finished product inspection are carried out Strictstandards ensure stable and reliable product quality,meeting international environmental protection and safety requirements.We have the ability to respond quickly to in-stock situations. It can efficiently meet the urgent supply demands of customers.At the same time,we are deeply engaged in customized services.Our professional team will precisely optimize solutions basedon the specific working conditions of

customers,providing highly adaptable and high-performance sealing solutions for various complex mechanical scenarios. This helps global customers enhance the operational efficiency and safety stability of their equipment and smoothly navigate the international market.

1.Westrive for excellence in quality inspection throughout the entire process 2. Strict quality control leadstoexcellence 3. Detail control and qualitytraceability 4.Internationalcertification ensuresimpeccablequality 5. Strive for excellence; everypieceisamasterpiece

1. Technology-driven and innovation-led
2.Continuouslyresearchand develop,iterateandupgrade
3.Craftsmanshipandinnovation empowerthefuture
4.Break through technical barriersandleadthe industrybenchmark
5.Customized innovation tomeetdiverseneeds

1.Honesty is the foundation, and we fulfill our promises andkeepourword 2.Treateachothersincerely andachievewin-win development 3.Remainsteadfastinour originalaspirationand establish ourbusinesswith integrity 4.Keeppromisesandliveuptotrust 5. Honest operation builds brandreputation

Corporate philosophy >>>

Core values

Honesty as the foundationInnovation as the soul Quality as the foundation Win-win is the way.

Corporate mission

Empower industrial upgrading with professional sealing technologyand provide safe and reliable sealing solutions for global customers.

Business Vision

To become an internationally leading expert in customizingsealsand createabenchmarkbrand ofhigh qualityandhigh reliabilityin theindustry

QUALIFICATIONCERTIFICATE

Excellent sealing Easy to install Rich in materials Strong adaptability

Hebei Sanyong New Materials Technology Co., LTd.

O-RING SEAL

Name	O-RingSeal
Brand	Sanyong 三永科技
	Specification For details,please refer to the specification sheet.
	ChineseNational Standard:GB/T3452.1-2005 GB/T1235-76
Enforce standards	Internationalstandard:ISO3601
Enforce standards	American standard:SAE AS 568 German standard:DIN3771 Japanese standard:JISB2401
Material	（NBR）、（FKM）、（VMQ）、（EPDM）、（FFKM）、（HNBR）、（FVMQ）、 CoveringPTFE、（PU）、（AFLAS）、（ACM）、Spraying（PTFE）、（PTFE）
Features	It features a simple structure，reliable sealing，convenient installation，low cost，and is suitable for multiple media and temperature and pressure scenarios.It has a wide range of applications and iseasy tomaintain.
field	Application Mechanical manufacturing，automotive industry，electronic and electrical appliances, aerospace，petrochemicals，medicaldevices，etc.

Demonstration of O-ring size measurement

Please measure with a vernier caliper

$Outerdiameter \ c = wirediameter ^ + innerdiameter ^ + wirediameter$

Outerdiameter \ c = wirediameter ^ + innerdiameter ^ + wirediameter

Warm reminder：Thenormal tolerance for the innerandouterdiameters of O-rings is ± 0 . 1 \mathbf { M } \mathbf { M } . ,andforwirediameters,itis ± \mathbf { 0 . 0 5 M M }

PHYSICALPROPERTIES

Material	Characteristics	Sealing type	Temperature iC)	Shore a
(NBR)	It has good corrosion resistance and oil resistance，and excellent elasticity	Static/Dynamic (axial reciprocation,rotation）	-40~120	60~95
(FKM)	It has good corrosion and oil resistance, can withstand high temperaturesand isanti-aging	Static/Dynamic (Medium and high-speed rotation,reciprocating)	-20~260	60~90
(vMQ)	It has average oil resistance，good heat resistance， good softness and ozone resistance	Static as the main focus (Low-speed reciprocating)	-60~300	30~85
(EPDM)	It has excellentanti-aging,acidand alkalicorrosion resistance, weather resistance and ozone resistance	Static/Dynamic (Low-pressure reciprocating, rotating)	-50~150	50~90
（HNBR）	Its oil resistance,high-temperature resistance and wear resistance are superior to those of ordinary nitrile	Static/Dynamic (High-speed reciprocating, rotating)	-40~150	55~90
(FVMQ)	Combiningtheadvantagesof silicone rubberand fluorine rubber，itis resistantto highand low temperatures aswellaschemical corrosion	Static/Dynamic (Mediumand low speed reciprocating)	-60~260	45~80
	It features high chemical stability and （AFLAS） high-temperature resistance，as well as excellent steam resistance	Static/Dynamic (Medium-pressure reciprocating,rotating)	-20~260	60~90
(FFKM)	Top-notchchemical resistanceand high-temperatureresistance,suitable forharshworkingconditions	Static/Dynamic (Extreme working conditions:reciprocatingand	-20~320	60~90
(ACM)	It has good oil resistance，heat resistance， excellent weather resistance,but average cold resistance	Static/Dynamic (Medium-temperature and low-pressure reciprocating)	-15~170	60~90
Spraying (PTFE)	Thebasematerialiselasticandthe PTFEsurfaceiscorrosion-resistant, withanextremely lowcoefficient of friction	Static/Dynamic (Low-friction scenarios required)	-60~260	30~95
Covering PTFE	The core elastomer + PTFE coating layer is corrosion-resistant and retains elasticity	Static/Dynamic (Medium and low pressure corrosion resistance scenarios）	-50~260	55~65 Shao's D
(PTFE)			-200~260	55~6D
(PU)	tear strength and good oil resistance. It has strong compressive and extrusion resistance,as well as excellent elasticity and elongation	Dynamic sealing is mainlyused (high-pressure reciprocating, frequent movement)	-35~100	80~95

An overview of O-rings

O-ringsprovide cost-effective sealing elements fordesigners to create various static or dynamic seals.The low production cost and ease of use have made O-rings one of the most widely used sealing elements.Due to the wide range of application environments of synthetic rubber,O-rings can almost be used in the sealing applications of all liquid and gas media.O-rings are vulcanized and formed in molds.Their characteristic is that the cross-section is circular and the overall shape is ring-shaped. The size specification of O-rings is indicated by:inner diameter x wire diameter (as shown in Figure 1)

Sealingmechanism

AnO-ringisabidirectioalsealingelement.TheinitalcompresionamountoftheOringintheradialoraxialdirectionduring installtiondeterminestheinitialsealingcapacityoftheO-ring.TheforceexertedbythesystempressreontheO-ringisthe sealing capacity of the O-ring.Within acertain range,it increases as the system pressure rises.

O-ring size markingand tolerance standard table

GB3452.1-92 GB1235-76

Diameter(mm)	Tolerance(±) (mm)	Wirediameter(mm)	Tolerance (±) (mm)
d		CS
0.00-1.79	±0.10	0.00-1.79	±0.07
1.80-6.29	±0.13	1.80-2.64	±0.08
6.30-10.59	±0.14	2.65-3.54	±0.09
10.60-18.99	±0.17	3.55-5.29	±1.10
19.00-31.49	±0.22	5.30-6.99	±0.13
31.50-41.19	±0.30	7.00-8.00	±0.15
41.20-51.49	±0.36	8.01-10.00	±0.20
51.50-64.99	±0.44
65.00-82.49	±0.53
82.50-121.99	±0.65
122.00-184.99	±0.90
185.00-257.99	±1.20
258.00-324.99	±1.60
325.00-411.99	±2.10
412.00-514.99	±2.60
515.00-649.99	±3.20
650.00-670.00	±4.00
670.01-999.00	±5.00
999.01-1200.00	±6.00

RECOMMENDED GROOVEDESIGN FOR O-RING

Crtison W	Radial arrangement					Axial arrangement		Chamfering radius
	Groove depth		Groovewidth			Gropth	Groote	Chamfering radius
	Dynamic seal	Static seal		b1+0.2b2+0.2b3+0.2		h+0.05	b4+0.2	r1
	t1+0.05 2.40	t+0.05 2.10	3.70	5.10	6.50	2.10	3.90	0.60
2.80 2.95	2.50	2.20	3.90	5.30	6.70	2.20	4.00	0.60
2.92 3.00	2.60	2.30	4.00	5.40	6.80	2.30	4.00	0.60
3.10	2.70	2.40	4.10	5.50	6.90	2.40	4.10	0.60
3.50	3.05	2.65	4.60	6.00	7.40	2.65	4. 70	0.60
3.533.55	3.10	2.70	4.80	6.20	7.60	2.70	5.00	0.80
3.60	3.15	2.80	4.80	6.20	7.60	2.80	5.10	0.80
4.00	3.50	3.10	5.20	6.90	8.60	3.10	5.30	0.80
4.50	4.00	3.50	5.80	7.50	9.20	3.50	5.90	0.80
5.00	4.40	4.00	6.60	8.30	10.20	4.00	6.70	0.80
5.335.30	4.70	4.30	7.10	8.80	10.50	4.30	7.30	1.20
5.50	4.80	4.50	7.10	8.80	10.50	4.50	7.30	1.20
5.70	5.00	4.60	7.20	8.90	10.60	4.60	7.40	1.20
6.00	5.30	4.90	7.40	9.10	10.80	4.90	7.60	1.20
6.50	5.70	5.40	8.00	9.70	11.40	5.40	8.20	1.20
6.997.00	6.10		9.50		14.50	5.80	9.70
7.50	6.60	5.80 6.30	9.70	12.00 12.20	14.70	6.30	9.90	1.50 1.50
8.00	7.10	6.70	9.80	12.30	14.80	6.70	10.00	1.50
8.40	7.50	7.10	10.00	12.50	15.00	7.10	10.30	1.50
9.00	8.10	7.70	10.60	13.10	15.60	7.70	10.90	2.00
9.50	8.60	8.20	11.00	13.50	16.00	8.20	11.40	2.00
10.00	9.10	8.60	11.60	14.10	16.60	8.60	12.00	2.50
12.00	11.00	10.60	13.50	16.00	18.50	10.60	14.00	2.50

O-RING SIZE

Chinese National Standard: Old national standard GB/T 1235-76
OD*CS-1	52×1	30 ×1.5	82×1.5	33×1.9	64X1.9	175×1.9	29 ×2.4
3×1	54×1	31×1.5	85×1.5	34X1.9	65×1.9	180 ×1.9	30 × 2.4
4X1	64X1	32×1.5	OD*CS-1.9	35×1.9	67X1.9	185×1.9	31×2.4
5×1	65×1	33×1.5	5×1.9	36×1.9	68×1.9	190 ×1.9	32 × 2.4
6X1	82×1	34X1.5	6X1.9	37X1.9	69 X1.9	195X1.9	33 ×2.4
7×1	OD*CS-1.5	35×1.5	7X1.9	38×1.9	70×1.9	200 X1.9	34×2.4
8×1	5×1.5	36X1.5	8×1.9	39×1.9	71×1.9	210 ×1.9	35 ×2.4
9×1	6X1.5	37×1.5	9×1.9	40×1.9	72×1.9	220 × 1.9	36×2.4
10×1	7×1.5	38×1.5	10×1.9	41X1.9	73×1.9	OD*CS-2. 4	37×2.4
11×1	8×1.5	39 X1.5	11×1.9	42 X1.9	74X1.9	7× 2.4	38 × 2.4
12×1	9×1.5	40×1.5	12×1.9	43×1.9	75X1.9	8×2.4	39 X2.4
13×1	10×1.5	41×1.5	13×1.9	44X1.9	77×1.9	9×2.4	40 × 2.4
14X1	11×1.5	42×1.5	14X1.9	45 ×1.9	80×1.9	10×2.4	41×2.4
15×1	12×1.5	43×1.5	15×1.9	46X1.9	85×1.9	11×2.4	42 X 2. 4
16X1	13×1.5	44X1.5	16X1.9	47 X1.9	90X1.9	12×2.4	43 ×2.4
17×1	14×1.5	45×1.5	17×1.9	48×1.9	95×1.9	13 ×2.4	44 X 2. 4
18×1	15×1.5	46X1.5	18×1.9	49X1.9	100 X1.9	14×2.4	45× 2.4
19×1	16×1.5	47X1.5	19×1.9	50×1.9	105 ×1.9	15×2.4	46 X 2. 4
20×1	17X1.5	48×1.5	20X1.9	51×1.9	110X1.9	16X2.4	47 X 2.4
22×1	18×1.5	49 ×1.5	21×1.9	52×1.9	115×1.9	17 ×2.4	48 X 2. 4
24×1	19×1.5	50×1.5	22 X1.9	53×1.9	120 X1.9	18×2.4	49 X 2.4
25×1	20×1.5	51×1.5	23×1.9	54×1.9	125 × 1.9	19×2.4	50 ×2.4
27×1	21×1.5	53×1.5	24×1.9	55 ×1.9	130 X1.9	20×2.4	51×2.4
28×1	22×1.5	55×1.5	25×1.9	56×1.9	135 ×1.9	21 X2.4	52×2.4
30×1	23×1.5	60×1.5	26×1.9	57X1.9	140X1.9	22 ×2.4	53×2.4
32×1	24×1.5	63×1.5	27 ×1.9	58×1.9	145 X 1.9	23×2.4	54×2.4
33×1	25×1.5	65 ×1.5	28 X1.9	59 X1.9	150 X1.9	24X2.4	55 ×2.4
38×1	26×1.5	67×1.5	29 ×1.9	60×1.9	155×1.9	25 ×2.4	56×2.4
40×1	27×1.5	70 X1.5	30 X1.9	61X1.9	160X1.9	26×2.4	57×2.4
44X1	28×1.5	75×1.5	31×1.9	62×1.9	165 ×1.9	27 ×2.4	58 ×2.4
46X1	29×1.5	80×1.5	32×1.9	63X1.9	170×1.9	28 ×2.4	59×2.4

O-RING SIZE

Chinese National Standard: Old national standard GB/T 1235-76
60×2.4	180×2.4	31X3.1	63 X3.1	185×3.1	340×3.1	500×3.1	21×3.5
61×2.4	185×2.4	32×3.1	65 ×3.1	190 ×3.1	345 ×3. 1	510×3.1	22 ×3.5
62×2.4	190 ×2.4	33×3.1	68 X3. 1	195 X3. 1	350×3.1	520×3. 1	23 ×3.5
63×2.4	195 × 2.4	34×3. 1	70 ×3.1	200 ×3.1	355×3. 1	530 ×3.1	24×3.5
65×2.4	200 ×2.4	35 ×3.1	72 × 3. 1	205×3.1	360 ×3. 1	540×3.1	25×3.5
66X2.4	205×2.4	36×3.1	75 ×3.1	210×3.1	365 ×3. 1	550×3.1	26×3.5
68×2.4	210×2.4	37×3.1	76X3.1	215×3.1	370 ×3. 1	560 ×3. 1	27 ×3.5
70 × 2.4	215×2.4	38 ×3.1	78 × 3. 1	220 ×3. 1	375 ×3. 1	570 ×3. 1	28×3.5
72× 2.4	220 ×2.4	39 X3. 1	80 ×3. 1	225 ×3.1	380 X3. 1	580 ×3.1	29 X3.5
75 × 2.4	OD*CS-3. 1	40 × 3. 1	85×3.1	230 ×3.1	385 ×3. 1	590 × 3. 1	30 ×3.5
76×2.4	10×3.1	41×3.1	88×3.1	235 ×3. 1	390 ×3. 1	600 ×3. 1	31×3.5
78 × 2.4	11×3.1	42 × 3. 1	90 ×3.1	240 ×3.1	395 ×3. 1	610×3.1	32 ×3.5
80×2.4	12×3.1	43 ×3.1	95×3.1	245 ×3. 1	400×3.1	620×3.1	33×3.5
85 ×2.4	13×3.1	44× 3. 1	98 ×3.1	250 ×3.1	405 ×3. 1	630 ×3. 1	34×3.5
90×2.4	14×3.1	45×3.1	100×3. 1	255×3.1	410×3.1	640 ×3.1	35 ×3.5
95 × 2.4	15×3.1	46X3. 1	105 ×3. 1	260 ×3.1	415×3.1	650 ×3. 1	36×3.5
98×2.4	16X3.1	47 ×3. 1	110X3. 1	265×3.1	420 ×3. 1	660 X 3. 1	37×3.5
100×2.4	17×3.1	48 X 3. 1	115×3.1	270 ×3.1	425×3.1	670 ×3.1	38×3.5
105 ×2.4	18×3.1	49 X3. 1	120×3.1	275 ×3.1	430 ×3. 1	680 X 3. 1	39×3.5
110×2.4	19×3.1	50 ×3.1	125 ×3. 1	280 ×3.1	435 ×3. 1	OD*CS-3.5	40 ×3.5
115×2.4	20×3.1	51×3.1	130×3.1	285 ×3.1	440 ×3.1	10×3.5	41 ×3.5
120 × 2. 4	21×3.1	52×3.1	135 ×3. 1	290 ×3. 1	445 X 3. 1	11×3.5	42 ×3.5
125×2.4	22×3.1	53×3.1	140 ×3. 1	295 ×3. 1	450 ×3. 1	12×3.5	43 ×3.5
130 ×2.4	23×3.1	54×3.1	145×3. 1	300 ×3.1	455×3.1	13×3.5	44×3.5
135 ×2.4	24×3.1	55 ×3.1	150×3. 1	305×3.1	460 X3. 1	14×3.5	45 ×3.5
140 × 2.4	25×3.1	56×3.1	155×3.1	310×3.1	465 ×3. 1	15×3.5	46×3.5
150×2.4	26X3.1	57×3.1	160 X3. 1	315×3.1	470 ×3. 1	16X3.5	47×3.5
160×2.4	27×3.1	58×3.1	165 ×3. 1	320 ×3.1	475×3.1	17×3.5	48×3.5
165 ×2.4	28×3.1	59 X3.1	170 X3. 1	325 ×3. 1	480 X3. 1	18X3.5	49 X3.5
170 ×2.4	29 ×3.1	60 ×3.1	175 ×3. 1	330 ×3. 1	485 × 3. 1	19×3.5	50×3.5
175×2.4	30×3.1	62×3.1	180X3.1	335×3.1	490 X3. 1	20×3.5	51X3.5

O-RING SIZE

ChineseNational Standard: Old national standard GB/T1235-76
52×3.5	140×3.5	310×3.5	480×3.5	655×3.5	33×4	94X4	255×4
53×3.5	145 ×3.5	315×3.5	485×3.5	660×3.5	34×4	95×4	260×4
54×3.5	150×3.5	320 ×3.5	490 ×3.5	665×3.5	35×4	98×4	265×4
55×3.5	155×3.5	325×3.5	495×3.5	670×3.5	36X4	100X4	270×4
56×3.5	160×3.5	330×3.5	500×3.5	675×3.5	37×4	105X4	275×4
57×3.5	165×3.5	335×3.5	505×3.5	680×3.5	38×4	110×4	280×4
58×3.5	170×3.5	340×3.5	510×3.5	685 ×3.5	40×4	115×4	285×4
59×3.5	175×3.5	345×3.5	520×3.5	690×3.5	41×4	120×4	290×4
60×3.5	180×3.5	350×3.5	525×3.5	695 ×3.5	42×4	125X4	295×4
61×3.5	185×3.5	355×3.5	530×3.5	700×3.5	43×4	130×4	300×4
62×3.5	190×3.5	360×3.5	535×3.5	710×3.5	44×4	135×4	305×4
63×3.5	195×3.5	365×3.5	540×3.5	720×3.5	45×4	140X4	310×4
64×3.5	200×3.5	370×3.5	545×3.5	730×3.5	47X4	145X4	315×4
65×3.5	205×3.5	375×3.5	550 ×3.5	740 ×3.5	48×4	150×4	320×4
66×3.5	210×3.5	380×3.5	555×3.5	750 ×3.5	50×4	155×4	325×4
67×3.5	215×3.5	385×3.5	560×3.5	OD*CS-4	52×4	160X4	330×4
68×3.5	220 ×3.5	390 ×3.5	565×3.5	12×4	55×4	165×4	335×4
70×3.5	225×3.5	395×3.5	570×3.5	13×4	57×4	170×4	340×4
72×3.5	230×3.5	400×3.5	575×3.5	14×4	58×4	175×4	345×4
75×3.5	235×3.5	405 ×3.5	580×3.5	15×4	60×4	180×4	350×4
78×3.5	240×3.5	410×3.5	585×3.5	16×4	62×4	185×4	355×4
80×3.5	245×3.5	415×3.5	590×3.5	17×4	65×4	190×4	360×4
82×3.5	250×3.5	420×3.5	595×3.5	18×4	68X4	195×4	365×4
85×3.5	255×3.5	425×3.5	600×3.5	20×4	70×4	200 ×4	370×4
90×3.5	260×3.5	430 ×3.5	605×3.5	21X4	72×4	205×4	375×4
95×3.5	265×3.5	435×3.5	610×3.5	22 ×4	75×4	210×4	380×4
100×3.5	270×3.5	440×3.5	615×3.5	24X4	78×4	215×4	385×4
105×3.5	275×3.5	445 ×3.5	620×3.5	25×4	80×4	220 ×4	390×4
110×3.5	280×3.5	450×3.5	625×3.5	26×4	82×4	225×4	395×4
115×3.5	285×3.5	455×3.5	630×3.5	27 ×4	84X4	230 ×4	400X4
120×3.5	290×3.5	460 ×3.5	635×3.5	28×4	85×4	235×4	405×4
125×3.5	295×3.5	465×3.5	640×3.5	29 X4	88×4	240 X4	410×4
130×3.5	300×3.5	470×3.5	645×3.5	30×4	90×4	245×4	415×4
135×3.5	305×3.5	475×3.5	650 ×3.5	32×4	92×4	250 ×4	420 ×4

O-RING SIZE

Chinese National Standard: Old national standard GB/T 1235-76
425×4	700X4	22×5	140×5	310×5	485×5	800×5	165×5.7
430 ×4	710×4	25×5	145×5	315×5	490×5	OD*CS-5.7	170 ×5.7
435×4	720×4	26×5	150×5	320×5	495×5	30×5.7	175×5.7
440 × 4	730 X4	28×5	155×5	325×5	500×5	35×5.7	180×5.7
445X4	740×4	30×5	160×5	330×5	510×5	40×5.7	185×5.7
450 X4	750 ×4	32×5	165×5	335×5	520×5	45 ×5.7	190×5.7
455×4	760×4	35×5	170×5	340×5	525×5	50 ×5.7	195×5.7
460 X4	770 ×4	36×5	175×5	345×5	530×5	52×5.7	200×5.7
465×4	780X4	38×5	180×5	350×5	540×5	55×5.7	205×5.7
470×4	790 X4	40×5	185×5	355×5	550×5	60×5.7	210×5.7
475×4	800×4	42×5	190×5	360×5	560×5	65×5.7	215×5.7
480 ×4	810×4	45×5	195×5	365×5	570×5	70×5.7	220 ×5.7
485×4	820×4	48×5	200×5	370×5	580×5	73×5.7	225×5.7
490 X4	830×4	50×5	205×5	375×5	590×5	75×5.7	230×5.7
495×4	840X4	52×5	210×5	380×5	600×5	78×5.7	235×5.7
500×4	850×4	55×5	215×5	385×5	610×5	80×5.7	240 ×5.7
510×4	860×4	58×5	220×5	390×5	620×5	82×5.7	245×5.7
520×4	870×4	60×5	225×5	395×5	630×5	85×5.7	250 ×5.7
530×4	880×4	65×5	230×5	400×5	640×5	88×5.7	255×5.7
540×4	890×4	67×5	235×5	405×5	650×5	90×5.7	260×5.7
550×4	900X4	70×5	240×5	410×5	660×5	95 ×5.7	265×5.7
560×4	910X4	75×5	245×5	415×5	670×5	100×5.7	270×5.7
570×4	920×4	80×5	250×5	420×5	680×5	105×5.7	275×5.7
580×4	930×4	85×5	255×5	425×5	690×5	110×5.7	280 ×5.7
590X4	940×4	90×5	260×5	430×5	700×5	115×5.7	285×5.7
600×4	950 ×4	95×5	265×5	435×5	710×5	120×5.7	290 ×5.7
610X4	960×4	100×5	270×5	440×5	720×5	125×5.7	295×5.7
620×4	970 ×4	105×5	275×5	445×5	730×5	130 ×5.7	300 ×5.7
630×4	980X4	110×5	280×5	450×5	740×5	135×5.7	305×5.7
650×4	990X4	115×5	285×5	455×5	750×5	140×5.7	310×5.7
660X4	1000×4	120×5	290×5	460×5	760×5	145×5.7	315×5.7
670×4	OD*CS-5	125×5	295×5	470×5	770×5	150×5.7	320 ×5.7
680×4	18×5	130×5	300×5	475×5	780×5	155×5.7	325×5.7
690 X4	20×5	135×5	305×5	480 ×5	790×5	160×5.7	330 ×5.7

O-RING SIZE

Chinese National Standard: Old national standard GB/T 1235-76
335×5.7	505×5.7		675×5.71000×5.7	190×6	360×6	530X6	800×6
340 ×5.7	510×5.7	680 ×5.7	OD*CS-6	195×6	365×6	535×6	810×6
345×5.7	515×5.7	685×5.7	40X6	200×6	370×6	540X6	820X6
350×5.7	520×5.7	690×5.7	50×6	205×6	375×6	545×6	830×6
355×5.7	525×5.7	695×5.7	55×6	210X6	380×6	550×6	840X6
360 ×5.7	530×5.7	700 ×5.7	60×6	215×6	385×6	555×6	850×6
365×5.7	535×5.7	710×5.7	63X6	220×6	390X6	560X6	860X6
370×5.7	540×5.7	720 ×5.7	65×6	225×6	395×6	565×6	870×6
375×5.7	545×5.7	730×5.7	67X6	230X6	400X6	570X6	880X6
380 ×5.7	550×5.7	740 ×5.7	70X6	235×6	405×6	575×6	890X6
385×5.7	555×5.7	750×5.7	75×6	240×6	410×6	580X6	900X6
390×5.7	560 ×5.7	760 ×5.7	80×6	245×6	415×6	585×6	910X6
395×5.7	565×5.7	770×5.7	85×6	250×6	420×6	590×6	920X6
400 ×5.7	570×5.7	780 ×5.7	90×6	255×6	425×6	595×6	930X6
405×5.7	575×5.7	790×5.7	95X6	260X6	430×6	600X6	940X6
410×5.7	580 ×5.7	800 ×5.7	100×6	265×6	435×6	610X6	950×6
415×5.7	585×5.7	810×5.7	105×6	270X6	440X6	620X6	960X6
420 ×5.7	590×5.7	820×5.7	110×6	275×6	445×6	630×6	970X6
425×5.7	595×5.7	830×5.7	115×6	280X6	450×6	640X6	980X6
430 ×5.7	600×5.7	840 ×5.7	120×6	285×6	455×6	650×6	990X6
435×5.7	605×5.7	850×5.7	125×6	290X6	460X6	660X6	1000×6
440 ×5.7	610×5.7	860 ×5.7	130×6	295×6	465X6	670X6	OD*CS-8.6
445×5.7	615×5.7	870 ×5.7	135×6	300X6	470X6	680 X6	90 X8.6
450×5.7	620×5.7	880 ×5.7	140X6	305×6	475×6	690X6	95×8.6
455×5.7	625×5.7	890 ×5.7	145X6	310X6	480X6	700×6	100×8.6
460 ×5.7	630×5.7	900 ×5.7	148X6	315×6	485×6	710X6	105×8.6
465×5.7	635×5.7	910×5.7	150×6	320×6	490X6	720X6	110×8.6
470 ×5.7	640×5.7	920 ×5.7	155×6	325×6	495×6	730 X6	115×8.6
475×5.7	645×5.7	940×5.7	160X6	330×6	500X6	740X6	120×8.6
480 ×5.7	650×5.7	950 ×5.7	165×6	335×6	505×6	750×6	125×8.6
485 ×5.7	655×5.7	960 ×5.7	170X6	340×6	510×6	760X6	130×8.6
490 ×5.7	660×5.7	970 ×5.7	175×6	345×6	515×6	770 X 6	135×8.6
495×5.7	665×5.7	980×5.7	180X6	350×6	520×6	780×6	140×8.6
500×5.7	670×5.7	990 ×5.7	185×6	355×6	525×6	790×6	145×8.6

O-RING SIZE

ChineseNational Standard: Old national standard GB/T1235-76
150×8.6	320×8.6	490×8.6	820×8.6	150×10	320×10	490×10	820×10
155×8.6	325×8.6	495×8.6	830×8.6	155×10	325×10	495×10	830×10
160X8.6	330X8.6	500×8.6	840X8.6	160X10	330 ×10	500×10	840×10
165×8.6	335×8.6	510×8.6	850 ×8.6	165×10	335×10	510×10	850×10
170×8.6	340 X8.6	520 X8.6	860 X8.6	170×10	340×10	520×10	860 X10
175×8.6	345×8.6	530 ×8.6	870×8.6	175×10	345×10	530×10	870×10
180×8.6	350×8.6	540×8.6	880×8.6	180×10	350×10	540×10	880×10
185×8.6	355×8.6	550×8.6	890×8.6	185×10	355×10	550×10	890×10
190X8.6	360×8.6	560×8.6	900X8.6	190X10	360×10	560×10	900 ×10
195×8.6	365×8.6	570×8.6	910×8.6	195×10	365×10	570×10	910×10
200X8.6	370X8.6	580 X8.6	920×8.6	200×10	370×10	580×10	920×10
205 ×8.6	375×8.6	590×8.6	930 ×8.6	205×10	375×10	590×10	930×10
210×8.6	380×8.6	600X8.6	940X8.6	210×10	380×10	600×10	940X10
215×8.6	385×8.6	610X8.6	950×8.6	215×10	385×10	610×10	950×10
220×8.6	390×8.6	620X8.6	960X8.6	220×10	390×10	620×10	960 X10
225 ×8.6	395×8.6	630×8.6	970 ×8.6	225×10	395×10	630×10	970 ×10
230 X8.6	400X8.6	640X8.6	980 X8.6	230×10	400X10	640X10	980×10
235×8.6	405×8.6	650×8.6	990 X8.6	235×10	405×10	650×10	990×10
240 ×8.6	410X8.6	660 X8.6	1000×8.6	240×10	410×10	660×10	1000×10
245 X8.6	415×8.6	670 X8.6	1010X8.6	245×10	415×10	670×10	1010×10
250 ×8.6	420×8.6	680 X8.6	1020 X8.6	250×10	420×10	680×10	1020X10
255 ×8.6	425 ×8.6	690 X8.6	1030 X8.6	255×10	425×10	690×10	1030×10
260X8.6	430X8.6	700 X8.6	1040 X8.6	260×10	430×10	700×10	1040X10
265×8.6	435 ×8.6	710×8.6	OD*CS-10	265×10	435×10	710×10	1050×10
270×8.6	440×8.6	720X8.6	100×10	270×10	440×10	720×10	1060×10
275×8.6	445×8.6	730×8.6	105×10	275×10	445 × 10	730 ×10	1070×10
280×8.6	450×8.6	740X8.6	110×10	280×10	450×10	740×10	1080×10
285 ×8.6	455×8.6	750 ×8.6	115×10	285×10	455×10	750×10	1090×10
290X8.6	460X8.6	760 X8.6	120×10	290×10	460×10	760X10	1100×10
295×8.6	465×8.6	770 ×8.6	125×10	295×10	465×10	770 ×10	1110×10
300X8.6	470X8.6	780X8.6	130×10	300×10	470×10	780×10
305×8.6	475×8.6	790 X8.6	135×10	305×10	475×10	790 ×10
310×8.6	480X8.6	800×8.6	140×10	310×10	480×10	800×10
315×8.6	485 X8.6	810X8.6	145 ×10	315×10	485 × 10	810×10

O-RING SIZE

ChineseNational Standard: Newnational standard GB/T 3452.1-2005
ID*CS-1.8	23.6×1.8	10×2.65	41. 2×2.6597.5X2. 65		215×2.65	390 X2. 65
2×1.8	25×1.8	10. 6X 2. 65	42. 3 × 2. 65	100 ×2. 65	220 X 2. 65	400 × 2. 65
2.8×1.8	25.8×1.8	11. 2 X 2. 65	43. 7 X 2. 65	103 ×2. 65	225 × 2. 65	ID*CS-3.55
3.15×1.8	26.5×1.8	11. 8 × 2. 65	45 × 2. 65	106×2.65	230 × 2. 65	17 ×3.55
4×1.8	28×1.8	12. 5×2. 65	46. 2 X 2. 65	110×2.65	235 ×2. 65	18×3.55
4.5×1.8	29×1.8	13. 2 ×2. 65	47. 5 × 2. 65	112 ×2.65	240 × 2. 65	19 ×3.55
5×1.8	30X1.8	14×2. 65	48. 7×2. 65	115 × 2. 65	245 X 2. 65	20 ×3.55
5.3×1.8	31.5×1.8	15 × 2.65	50 × 2.65	118 ×2.65	250 × 2. 65	21.2×3.55
6X1.8	32.5×1.8	16×2.65	51.5×2. 65	120 ×2. 65	255 × 2. 65	22. 4×3.55
7×1.8	33.5×1.8	17× 2.65	53×2.65	122 × 2. 65	260 X 2. 65	23.6×3.55
7.5×1.8	34.5×1.8	18×2.65	54.5×2.65	125×2. 65	265 X 2. 65	25×3.55
8×1.8	35.5×1.8	19 × 2. 65	56× 2.65	128 × 2. 65	270 × 2. 65	25.8×3.55
8.75×1.8	36.5×1.8	20 ×2.65	58× 2.65	128.8×2. 15	275 × 2. 65	26.5×3.55
9×1.8	37.5×1.8	21. 2 × 2. 65	60 ×2.65	130 ×2.65	280 × 2. 65	28 ×3.55
9.5×1.8	38.7×1.8	22.4×2. 65	61. 5 ×2. 65	132 ×2. 65	282 X 2. 65	30 ×3.55
10×1.8	40×1.8	23. 6X2. 65	63 × 2.65	135 × 2. 65	285 × 2. 65	31.5×3.55
10.6X1.8	41.2X1.8	25×2.65	65× 2.65	140 ×2. 65	295 × 2. 65	32.5×3.55
11. 2×1.8	42.5×1.8	25.8 × 2. 65	67 × 2. 65	145 × 2. 65	300 × 2. 65	33.5×3.55
11.4×1.8	43.7X1.8	26.5×2.65	69X2.65	150 ×2. 65	305 × 2. 65	34.5×3.55
11.8×1.8	45×1.8	28 × 2.65	71 X 2. 65	155 × 2. 65	310 × 2.65	35.5×3.55
12.5×1.8	46.2X1.8	29 X 2. 65	73×2. 65	160 X2. 65	315×2.65	36.5×3.55
13.2×1.8	47.2X 1.8	30 × 2. 65	75 × 2. 65	165 × 2. 65	320 × 2. 65	37.5 ×3.55
14×1.8	48.7×1.8	31.5×2. 65	77. 5 × 2. 65	170 ×2. 65	325 × 2. 65	38.7×3.55
15×1.8	50×1.8	32. 5 × 2. 65	80 ×2.65	175 × 2. 65	330 × 2. 65	40×3.55
16×1.8	ID*CS-2. 65	33.5×2. 65	82.5×2. 65	180 × 2. 65	335 ×2. 65	41. 2×3.55
17×1.8	7. 1× 2. 65	34. 5 × 2. 65	85×2.65	185 ×2.65	340 × 2. 65	42. 3 × 3. 55
18×1.8	7. 6×2. 65	35.5×2. 65	87.5 ×2. 65	190 X 2. 65	345 × 2. 65	43.7×3.55
19×1.8	8× 2.65	36. 5 X 2. 65	90 × 2. 65	195 × 2. 65	350 × 2. 65	45 ×3.55
20×1.8	8.5×2.35	37. 5 X 2. 65	92. 5 ×2. 65	200 X 2.65	360 X 2. 65	46. 2X3.55
21.2×1.8	9×2.65	38. 7 X 2. 65	92.8×2.15	208 × 2. 65	370 × 2. 65	47.5× 3. 55
22.4X1.8	9.5×2. 65	40 X 2.65	95 ×2.65	212 X 2. 65	380 × 2. 65	48.7×3.55

O-RING SIZE

Chinese National Standard: New national standard GB/T 3452.1-2005
50×3.55	118×3.55	245 ×3.55	51.5×5.3	125×5.3	265×5.3	415×5.3
51.5×3.55	120×3.55	25×3.55	53×5.3	128×5.3	270×5.3	420 ×5.3
53×3.55	122×3.55	255×3.55	54.5×5.3	132×5.3	272×5.3	425×5.3
54.5×3.55	125 ×3.55	258 ×3.55	56×5.3	136×5.3	275×5.3	430 ×5.3
56×3.55	130 ×3.55	260 ×3.55	58×5.3	140×5.3	280 ×5.3	435 ×5.3
58×3.55	132×3.55	265 ×3.55	60×5.3	142×5.3	285×5.3	440 ×5.3
60×3.55	136×3.55	270 ×3.55	61.5×5.3	145 ×5.3	290 ×5.3	445 X5.3
61.5×3.55	140×3.55	272 ×3.55	63×5.3	150×5.3	295×5.3	450 ×5.3
63×3.55	145×3.55	275 ×3. 55	65×5.3	155×5.3	300 ×5.3	455 ×5.3
65×3.55	150 ×3.55	280 ×3.55	67×5.3	160 ×5.3	307×5.3	460 ×5.3
67X3.55	155×3.55	285×3.55	69×5.3	165×5.3	310×5.3	465 ×5.3
69 ×3.55	160×3.55	290 ×3.55	71×5.3	170 ×5.3	315×5.3	470 ×5.3
70×3.55	165×3.55	295 ×3.55	73×5.3	175×5.3	320×5.3	475×5.3
71×3.55	170 ×3.55	300 ×3.55	75×5.3	180×5.3	325×5.3	480 ×5.3
73×3.55	175×3.55	305 ×3.55	77.5×5.3	185 ×5.3	330×5.3	485 ×5.3
75 ×3.55	180×3.55	310 ×3.55	80×5.3	190 ×5.3	335×5.3	490 ×5.3
77.5 ×3. 55	185×3.55	320 ×3.55	82.5×5.3	195×5.3	340×5.3	495 ×5.3
80×3.55	190 ×3.55	325 ×3.55	85×5.3	200 ×5.3	345×5.3	500×5.3
82.5×3.55	195×3.55	330 ×3.55	87.5×5.3	203×5.3	350×5.3	505×5.3
85×3.55	200×3.55	335×3.55	90×5.3	206×5.3	355×5.3	510×5.3
87.5×3.55	206×3.55	340 ×3.55	92.5×5.3	210×5.3	360 ×5.3	515×5.3
90×3.55	208×3.55	ID*CS-5.3	95×5.3	212×5.3	365×5.3	520×5.3
92.5×3.55	212×3.55	40 ×5.3	97.5×5.3	218×5.3	370×5.3	525×5.3
95×3.55	215×3.55	41. 2×5.3	100×5.3	224×5.3	375×5.3	530×5.3
97.5×3.55	218×3.55	42.3×5.3	103×5.3	230 ×5.3	380×5.3	535×5.3
100 ×3.55	220 × 3.55	43. 7×5.3	106×5.3	236×5.3	387×5.3	540×5.3
103×3.55	224×3.55	45×5.3	109×5.3	243×5.3	390 ×5.3	545×5.3
106×3.55	230×3.55	46. 2×5.3	112×5.3	250 ×5.3	395×5.3	550×5.3
109 ×3.55	236X3.55	47.5×5.3	115×5.3	254×5.3	400 ×5.3	555×5.3
112×3.55	240×3.55	48. 7×5.3	118×5.3	258×5.3	405 ×5.3	560 ×5.3
115×3.55	243×3.55	50×5.3	122×5.3	260×5.3	410×5.3	565×5.3

O-RING SIZE

Chinese National Standard: New national standard GB/T 3452.1-2005
570×5.3	860 ×5.3	95×7	206×7	370×7	640X7	950X7
575×5.3	870×5.3	97×7	212×7	375×7	650×7	960×7
580×5.3	880×5.3	100X7	218×7	380×7	660X7	970 X7
585×5.3	890×5.3	101×7	224×7	387×7	670×7	980×7
590×5.3	900 ×5.3	103×7	230×7	390 ×7	680×7	990 X7
600×5.3	910×5.3	106×7	236×7	395×7	690×7	1000×7
610×5.3	920×5.3	107X7	243×7	400×7	700 ×7	1010×7
620×5.3	930 ×5.3	109×7	250×7	412×7	710×7	1020×7
630×5.3	940 X5.3	111X7	258×7	425 ×7	720 X7	1030×7
640×5.3	950 ×5.3	112×7	260×7	430×7	730×7	1040×7
650×5.3	960 X5.3	115X7	265×7	437X7	740×7	1050×7
660×5.3	970×5.3	118×7	272 ×7	443×7	750×7
670×5.3	980X5.3	122×7	275×7	450×7	760×7
680×5.3	990 ×5.3	125×7	280×7	462×7	770×7
690×5.3	1000×5.3	128X7	285×7	475×7	780×7
700×5.3	ID*CS-7	132×7	290 ×7	487×7	790 ×7
710×5.3	37X7	136×7	295×7	490×7	800×7
720 ×5.3	41×7	140×7	300×7	500×7	810×7
730×5.3	43×7	145X7	307×7	510×7	820×7
740×5.3	48×7	150×7	310×7	520×7	830×7
750×5.3	53×7	155×7	315×7	530×7	840X7
760×5.3	54×7	160×7	320×7	540×7	850×7
770×5.3	56×7	165X7	325×7	550×7	860X7
780×5.3	60×7	170×7	330×7	560×7	870×7
790×5.3	66×7	175×7	335×7	570×7	880×7
800×5.3	71×7	180×7	340×7	580×7	890×7
810×5.3	76X7	185×7	345×7	590×7	900X7
820×5.3	82×7	190×7	350×7	600×7	910×7
830×5.3	86×7	195X7	355×7	610X7	920X7
840×5.3	90×7	200×7	360×7	620×7	930×7
850×5.3	92×7	203×7	365×7	630×7	940X7

O-RING SIZE

American standard: SAE AS 568
ID*CS-1. 78	55.25×2. 62	8×3	36×3	65×3	97×3	128×3	161×3
10. 82 X1. 78	56.82 ×2. 62	9×3	37×3	66×3	98×3	129×3	162×3
15.6X1.78	58.42×2. 62	10×3	38×3	67×3	99×3	130×3	163×3
17. 17× 1. 78	67. 95 X 2. 62	11×3	39×3	68×3	100×3	132×3	164×3
18. 77×1. 78	72. 69 X 2. 62	12×3	39.2×3	69×3	101X3	133×3	165×3
21. 95 ×1. 78	74. 3 × 2. 62	13×3	40×3	70×3	102×3	134×3	166×3
22X1. 78	75. 87 X 2. 62	13.5×3	41×3	71×3	103×3	135×3	167×3
35×1.78	83.80×2.62	14×3	42×3	72×3	104×3	136×3	168×3
37.82*1. 78	88.57×2. 62	15×3	43×3	74×3	105×3	137×3	169×3
50.52×1. 78	101. 27 X 2. 62	16×3	44×3	75×3	106×3	138×3	170×3
53.7×1. 78	107. 62× 2. 62	17×3	45×3	76×3	107×3	139×3	171X3
56.87 ×1. 78	113. 97X 2. 62	18×3	46×3	77×3	108×3	140×3	172×3
66.4X1.78	120.62×2.62	19×3	47×3	78×3	109×3	141×3	173×3
69. 57 X1. 78	126. 67 X 2. 62	20×3	48×3	79×3	110×3	142×3	174×3
82.27X1. 78	133.02×2. 62	21×3	49×3	80×3	111×3	143×3	175×3
88.62 X1. 78	139. 37 X 2. 62	22×3	50×3	81×3	112×3	144×3	178×3
91.7×1.78	152. 07× 2. 62	23×3	51×3	82×3	113×3	145×3	179×3
101.32×1. 78	158. 42 × 2. 62	24×3	52×3	83×3	114×3	146×3	180×3
104.4×1.78	177. 47 X 2. 62	25×3	53×3	84×3	115×3	147X3	181×3
107. 67 X1. 78	183.82× 2. 62	26×3	54×3	85×3	116×3	148×3	182×3
126.72×1. 78	202.87×2. 62	27×3	55×3	86×3	117×3	149×3	184X3
133. 07 X1. 78	215.54× 2. 62	28×3	56×3	87×3	118×3	150×3	185×3
ID*CS-2.62	221.92× 2. 62	29×3	57×3	88×3	119×3	151×3	188×3
9.19 ×2. 62	228. 27 × 2. 62	29.2×3	58×3	89×3	120×3	152×3	189×3
18.72×2.62	234. 62×2. 62	30×3	59×3	90×3	121×3	153×3	190×3
20. 63×2. 62	247. 32 × 2. 62	31×3	59.5×3	91×3	122×3	154×3	191×3
39.34X2.62	ID*CS-3	32×3	60×3	92×3	123×3	155×3	192X3
45.69×2.62	4×3	33×3	61×3	93×3	124×3	156×3	193×2
50.47X2. 62	5×3	34×3	62×3	94×3	125×3	157×3	194X3
52.07×2.62	6×3	34.2×3	63×3	95×3	126×3	158×3	195×3
53.64X2. 62	7×3	35×3	64X3	96X3	127×3	160×3	196×3

O-RING SIZE

American standard: SAE AS 568
197×3	300×3	44. 45×3.53	29.51×5.33	253.37×5.33	183. 52X6.99
198×3	304×3	50.80 ×3.53	34. 29×5.33	278. 77×5.33	187. 30 X6. 99
200×3	305×3	53.57×3.53	40.64×5.33	291.47×5.33	202. 57X6.99
203×3	310×3	55.56×3.53	46.99 ×5. 33	318. 70 ×5. 33	208.92X6. 99
204×3	320×3	58.78×3.53	66.04X5.33	338.15×5.33	227.97×6.99
205×3	325×3	78. 97 X3. 53	72. 39 ×5. 33	481. 46 ×5. 33	253. 37 ×6. 99
210×3	330×3	88.49X3. 53	78. 74×5.33	506.81×5.33	259. 70 X6.99
212×3	335×3	91. 67 X3. 53	81.92×5. 33	532. 21×5. 33	278. 77 X6. 99
215×3	340×3	101.19×3.53	88.27×5.33	557.61×5.33	291. 47×6. 99
216×3	345×3	104.37×3.53	91. 44×5. 33	582.68×5.33	297. 80 X6. 99
218×3	350×3	107.54×3.53	97. 79×5. 33	608.08×5.33	323.20X6.99
220 ×3	354×3	110. 72×3. 53	100.97×5. 33	633.48×5.33	342. 27 ×6. 99
225×3	355×3	113.89×3.53	104. 14×5.33	658.88×5.33	367.67×6.99
230 ×3	360×3	117. 07×3. 53	110. 49×5. 33	ID*CS-6. 99	393. 07 X 6. 99
232×3	365×3	119. 7X3.53	113. 67X5. 33	34. 29 X 6.99	417. 96X6. 99
233×3	370×3	123. 42×3. 53	116.84×5. 33	43. 82 X 6. 99	443.36X6. 99
235×3	375×3	126.59×3. 53	123.8×5. 33	53.34X6.99	456.06X6.99
240×3	380×3	139.30 ×3. 53	139. 07 ×5. 33	56.52X 6. 99	468.76×6.99
242×3	385×3	142.47×3.53	142. 24×5.33	64. 25X6.99	481. 16X6.99
245 ×3	390×3	151. 99 ×3. 53	148. 59 ×5. 33	72. 39 X 6. 99	494. 16X 6. 99
247×3	395×3	221.84×3.53	151. 77×5. 33	78. 74X6.99	506.86X6.99
250 ×3	400×3	234. 54×3. 53	158. 12×5. 33	88. 25 X 6. 99	532. 26X6. 99
255×3	ID*CS-3. 53	240.89×3. 53	161.30×5.33	94. 62 X6.99	557. 66X6.99
257×3	7.52×3.53	266.29 ×3. 53	177. 17×5. 33	107. 30 X 6. 99	583. 68X6. 99
260×3	10. 69X3.53	291.69×3.53	183.52×5.33	110.49 ×6.99	608.08×6.99
265×3	12. 29 ×3. 53	ID*CS-5. 33	202. 57×5. 33	116. 84X 6. 99	633. 48 X6. 99
270×3	15.47×3.53	16.81×5. 33	208.92×5.33	126. 37X6.99	658.88×6.99
275×3	18. 64X3.53	21.59 ×5.33	221. 62×5. 33	139. 07 X 6. 99
280×3	21.82×3.53	23.16×5.33	227. 97×5. 33	142. 24X 6. 99
285×3	39.69×3. 53	24. 77×5. 33	234.32×5.33	148. 59 × 6. 99
295×3	40.87×3. 53	26.34×5.33	247. 02×5.33	177. 17X 6. 99

O-RING SIZE

Other non-standard sizes
IDXCS	9×1.7	160×6.3	220×6.3	ODXCS	59×4.5
4.2×1.4	29.44×3.3	165×6.3	230×6.3	15×4.5	75×4.5
17×1.4	29×3.4	170×6.3	235×6.3	27 ×4.5	58X4.6
35×1.4	46X3.65	180×6.3	240×6.3	28×4.5	99×9
3.8×1.6	28×3.7	185×6.3	250×6.3	34×4.5	120×9
2.2×1.6	80×3.75	190×6.3	265×7.3	41 ×4.5	154×9
9×1.6	280×4.5	200×6.3	68×7.5	45×4.5
13×1.6	140×6.3	205×6.3	180×7.5	50×4.5
15×1.6	145×6.3	210×6.3	257×7.5	55×4.5
85×1.6	150×6.3	215×6.3	200×7.5	58×4.5

Full-dimensional customized standard in-stock products precisely match your sealing requirements

We have a full range of standard-sized O-rings in stock, covering common specifications in the industry. There is no need to wait for the production cycle. Orders can be dispatched quickly to meet your urgentreplenishment and regular usage needs.

Extra-large size O-rings, no mold opening required Hollow O-rings, customizable in any size The color, material, size, hardness, Logo and packaging can be adjusted as needed