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An O-ring is a loop of elastomer/rubber with a round cross-section, designed to be seated in a groove and compressed during assembly between two or more parts, creating a seal.
The O-ring may be used in static or dynamic applications where there is relative motion between the parts and the O-ring. Dynamic examples include rotating pump shafts and hydraulic cylinder pistons.
O-rings are one of the most common seals used in machine design because they are inexpensive, easy to make, reliable, and have simple mounting requirements. They can seal tens of megapascals (thousands of psi) of pressure.
4.00x4.00 FKM/Viton™ 75 BROWN O-Ring
ID 4.00 mm
CS 4.00 mm
PN Metric-75-BROWN-FKM/Viton™-o-ring-4.00x4.00
177.00x5.00 EPDM 70 Black O-Ring
ID 177.00 mm
CS 5.00 mm
PN Metric-70-Black-EPDM-o-ring-177.00x5.00
240.00x3.00 EPDM 70 Black O-Ring
ID 240.00 mm
CS 3.00 mm
PN Metric-70-Black-EPDM-o-ring-240.00x3.00
418 91.44x6.99 NBR 70 Black O-Ring
ID 91.44 mm / 3.600 in
CS 6.99 mm / 0.275 in
PN AS568-418-70-Black-NBR-o-ring
150 EPDM 70 Black O-Ring
ID 72.69 mm / 2.862 in
CS 2.62 mm / 0.103 in
PN AS568-150-70-Black-EPDM-o-ring
425.00x5.00 FKM/Viton™ 75 BROWN O-Ring
ID 425.00 mm
CS 5.00 mm
PN Metric-75-BROWN-FKM/Viton™-o-ring-425.00x5.00
97.00x5.00 NBR 70 Black O-Ring
ID 97.00 mm
CS 5.00 mm
PN Metric-70-Black-NBR-o-ring-97.00x5.00
229.00x5.00 EPDM 70 Black O-Ring
ID 229.00 mm
CS 5.00 mm
PN Metric-70-Black-EPDM-o-ring-229.00x5.00
111.00x4.00 NBR 70 Black O-Ring
ID 111.00 mm
CS 4.00 mm
PN Metric-70-Black-NBR-o-ring-111.00x4.00
247 SILICONE 70 Rust O-Ring
ID 117.07 mm / 4.609 in
CS 3.53 mm / 0.139 in
PN AS568-247-70-Rust-SILICONE-o-ring
250 NBR 70 Black O-Ring
ID 126.59 mm / 4.984 in
CS 3.53 mm / 0.139 in
PN AS568-250-70-Black-NBR-o-ring
191.00x3.00 SILICONE 70 Rust O-Ring
ID 191.00 mm
CS 3.00 mm
PN Metric-70-Rust-SILICONE-o-ring-191.00x3.00
116.00x5.00 SILICONE 70 Rust O-Ring
ID 116.00 mm
CS 5.00 mm
PN Metric-70-Rust-SILICONE-o-ring-116.00x5.00
23.00x4.00 FKM/Viton™ 75 BROWN O-Ring
ID 23.00 mm
CS 4.00 mm
PN Metric-75-BROWN-FKM/Viton™-o-ring-23.00x4.00
319.00x4.00 NBR 70 Black O-Ring
ID 319.00 mm
CS 4.00 mm
PN Metric-70-Black-NBR-o-ring-319.00x4.00
473.00x4.00 FKM/Viton™ 75 BROWN O-Ring
ID 473.00 mm
CS 4.00 mm
PN Metric-75-BROWN-FKM/Viton®-o-ring-473.00x4.00
12.50x2.00 NBR 70 Black O-Ring
ID 12.50 mm
CS 2.00 mm
PN Metric-70-Black-NBR-o-ring-12.50x2.00
454 316.87x6.99 EPDM 70 Black O-Ring
ID 316.87 mm / 12.475 in
CS 6.99 mm / 0.275 in
PN AS568-454-70-Black-EPDM-o-ring
27.00x2.00 NBR 70 Black O-Ring
ID 27.00 mm
CS 2.00 mm
PN Metric-70-Black-NBR-o-ring-27.00x2.00
330 NBR 70 Black O-Ring
ID 53.34 mm / 2.100 in
CS 5.33 mm / 0.210 in
PN AS568-330-70-Black-NBR-o-ring
4.00x5.00 NBR 70 Black O-Ring
ID 4.00 mm
CS 5.00 mm
PN Metric-70-Black-NBR-o-ring-4.00x5.00
31.00x2.50 EPDM 70 Black O-Ring
ID 31.00 mm
CS 2.50 mm
PN Metric-70-Black-EPDM-o-ring-31.00x2.50
26.00x5.00 EPDM 70 Black O-Ring
ID 26.00 mm
CS 5.00 mm
PN Metric-70-Black-EPDM-o-ring-26.00x5.00
61.00x2.50 NBR 70 Black O-Ring
ID 61.00 mm
CS 2.50 mm
PN Metric-70-Black-NBR-o-ring-61.00x2.50
65.00x3.00 FKM/Viton™ 75 BROWN O-Ring
ID 65.00 mm
CS 3.00 mm
PN Metric-75-BROWN-FKM/Viton™-o-ring-65.00x3.00
332 FKM/Viton™ 75 Brown O-Ring
ID 59.69 mm / 2.350 in
CS 5.33 mm / 0.210 in
PN AS568-332-75-Brown-FKM/Viton™-o-ring
43.00x3.00 SILICONE 70 Rust O-Ring
ID 43.00 mm
CS 3.00 mm
PN Metric-70-Rust-SILICONE-o-ring-43.00x3.00
76.00x2.00 SILICONE 70 Rust O-Ring
ID 76.00 mm
CS 2.00 mm
PN Metric-70-Rust-SILICONE-o-ring-76.00x2.00
125.00x3.00 NBR 70 Black O-Ring
ID 125.00 mm
CS 3.00 mm
PN Metric-70-Black-NBR-o-ring-125.00x3.00
37.00x2.00 EPDM 70 Black O-Ring
ID 37.00 mm
CS 2.00 mm
PN Metric-70-Black-EPDM-o-ring-37.00x2.00
37.50x2.00 SILICONE 70 Rust O-Ring
ID 37.50 mm
CS 2.00 mm
PN Metric-70-Rust-SILICONE-o-ring-37.50x2.00
74.00x5.00 EPDM 70 Black O-Ring
ID 74.00 mm
CS 5.00 mm
PN Metric-70-Black-EPDM-o-ring-74.00x5.00
146.00x4.00 FKM/Viton™ 75 BROWN O-Ring
ID 146.00 mm
CS 4.00 mm
PN Metric-75-BROWN-FKM/Viton™-o-ring-146.00x4.00
100.00x4.00 NBR 70 Black O-Ring
ID 100.00 mm
CS 4.00 mm
PN Metric-70-Black-NBR-o-ring-100.00x4.00
233.00x4.00 SILICONE 70 Rust O-Ring
ID 233.00 mm
CS 4.00 mm
PN Metric-70-Rust-SILICONE-o-ring-233.00x4.00
381.00x4.00 FKM/Viton™ 75 BROWN O-Ring
ID 381.00 mm
CS 4.00 mm
PN Metric-75-BROWN-FKM/Viton™-o-ring-381.00x4.00
328 NBR 70 Black O-Ring
ID 46.99 mm / 1.850 in
CS 5.33 mm / 0.210 in
PN AS568-328-70-Black-NBR-o-ring
383 SILICONE 70 Rust O-Ring
ID 354.97 mm / 13.975 in
CS 5.33 mm / 0.210 in
PN AS568-383-70-Rust-SILICONE-o-ring
139.00x2.50 SILICONE 70 Rust O-Ring
ID 139.00 mm
CS 2.50 mm
PN Metric-70-Rust-SILICONE-o-ring-139.00x2.50
14.00x1.50 NBR 70 Black O-Ring
ID 14.00 mm
CS 1.50 mm
PN Metric-70-Black-NBR-o-ring-14.00x1.50
199.00x5.00 SILICONE 70 Rust O-Ring
ID 199.00 mm
CS 5.00 mm
PN Metric-70-Rust-SILICONE-o-ring-199.00x5.00
339.00x4.00 SILICONE 70 Rust O-Ring
ID 339.00 mm
CS 4.00 mm
PN Metric-70-Rust-SILICONE-o-ring-339.00x4.00
2.00x2.00 FKM/Viton™ 75 BROWN O-Ring
ID 2.00 mm
CS 2.00 mm
PN Metric-75-BROWN-FKM/Viton™-o-ring-2.00x2.00
30.00x1.50 SILICONE 70 Rust O-Ring
ID 30.00 mm
CS 1.50 mm
PN Metric-70-Rust-SILICONE-o-ring-30.00x1.50
446.00x4.00 EPDM 70 Black O-Ring
ID 446.00 mm
CS 4.00 mm
PN Metric-70-Black-EPDM-o-ring-446.00x4.00
121.00x5.00 SILICONE 70 Rust O-Ring
ID 121.00 mm
CS 5.00 mm
PN Metric-70-Rust-SILICONE-o-ring-121.00x5.00
76.00x2.00 NBR 70 Black O-Ring
ID 76.00 mm
CS 2.00 mm
PN Metric-70-Black-NBR-o-ring-76.00x2.00
147.00x2.50 NBR 70 Black O-Ring
ID 147.00 mm
CS 2.50 mm
PN Metric-70-Black-NBR-o-ring-147.00x2.50
902 6.07x1.63 EPDM 70 Black O-Ring
ID 6.07 mm / 0.239 in
CS 1.63 mm / 0.064 in
PN AS568-902-70-Black-EPDM-o-ring
9.00x4.00 EPDM 70 Black O-Ring
ID 9.00 mm
CS 4.00 mm
PN Metric-70-Black-EPDM-o-ring-9.00x4.00
013 EPDM 70 Black O-Ring
ID 10.82 mm / 0.426 in
CS 1.78 mm / 0.070 in
PN AS568-013-70-Black-EPDM-o-ring
257 NBR 70 Black O-Ring
ID 148.82 mm / 5.859 in
CS 3.53 mm / 0.139 in
PN AS568-257-70-Black-NBR-o-ring
205.00x6.00 SILICONE 70 Rust O-Ring
ID 205.00 mm
CS 6.00 mm
PN Metric-70-Rust-SILICONE-o-ring-205.00x6.00
348 SILICONE 70 Rust O-Ring
ID 110.49 mm / 4.350 in
CS 5.33 mm / 0.210 in
PN AS568-348-70-Rust-SILICONE-o-ring
185.00x5.00 SILICONE 70 Rust O-Ring
ID 185.00 mm
CS 5.00 mm
PN Metric-70-Rust-SILICONE-o-ring-185.00x5.00
71.00x2.00 NBR 70 Black O-Ring
ID 71.00 mm
CS 2.00 mm
PN Metric-70-Black-NBR-o-ring-71.00x2.00
115 FKM/Viton™ 75 Brown O-Ring
ID 17.12 mm / 0.674 in
CS 2.62 mm / 0.103 in
PN AS568-115-75-Brown-FKM/Viton™-o-ring
124.00x5.00 FKM/Viton™ 75 BROWN O-Ring
ID 124.00 mm
CS 5.00 mm
PN Metric-75-BROWN-FKM/Viton®-o-ring-124.00x5.00
24.00x1.50 EPDM 70 Black O-Ring
ID 24.00 mm
CS 1.50 mm
PN Metric-70-Black-EPDM-o-ring-24.00x1.50
042 FKM/Viton™ 75 Brown O-Ring
ID 82.27 mm / 3.239 in
CS 1.78 mm / 0.070 in
PN AS568-042-75-Brown-FKM/Viton™-o-ring