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Metric O-Rings are employed in specialized applications and, like the name suggests, are standardized by metric dimensions. With a wide variety of sizes available, Metric O-Rings fill in the gaps left by the standardized AS568 o-ring chart. Metric O-Ring sizing is determined by the o-ring's inside diameter and cross section width.

This elastomer possesses mechanical properties similar to Viton®, with the exception of its slightly lower compression set resistance. It is more suitable for sensitive applications where lighter compressive forces are applied to energize the seal. This core has a Shore A hardness of 70 but it also offers a broader operating temperature range of -80°F to +500°F. (-62°C to +260°C). For more information, please see: Comparison Properties Chart, PTFE Encapsulated O-rings, Material Shelf Life, and O-ring Groove Design Chart.
Metric O-Rings
Unit of Measure
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Item #

IntegrationID

Type

Material

Cross Reference

Cross Section Width

Durometer

Inside Diameter

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Quantity
14 X 1.78 S-70 N/A
133667 		N/A Metric Standard O-Ring N/A Silicone N/A 15 N/A 1.78 mm N/A 70 N/A 14.00 mm N/A O-rings are used in the military, automotive,
15.6 X 1.78 S-70 N/A
133668 		N/A Metric Standard O-Ring N/A Silicone N/A 16 N/A 1.78 mm N/A 70 N/A 15.60 mm N/A O-rings are used in the military, automotive,
17.17 X 1.78 S-70 N/A
133669 		N/A Metric Standard O-Ring N/A Silicone N/A 17 N/A 1.78 mm N/A 70 N/A 17.17 mm N/A O-rings are used in the military, automotive,
18.77 X 1.78 S-70 N/A
133670 		N/A Metric Standard O-Ring N/A Silicone N/A 18 N/A 1.78 mm N/A 70 N/A 18.77 mm N/A O-rings are used in the military, automotive,
19.05 X 1.78 S-70 N/A
133671 		N/A Metric Standard O-Ring N/A Silicone N/A N/A 1.78 mm N/A 70 N/A 19.05 mm N/A O-rings are used in the military, automotive,
19.15 X 1.78 S-70 N/A
133672 		N/A Metric Standard O-Ring N/A Silicone N/A N/A 1.78 mm N/A 70 N/A 19.15 mm N/A O-rings are used in the military, automotive,
20.35 X 1.78 S-70 N/A
133673 		N/A Metric Standard O-Ring N/A Silicone N/A 19 N/A 1.78 mm N/A 70 N/A 20.35 mm N/A O-rings are used in the military, automotive,
21.47 X 1.78 S-70 N/A
133674 		N/A Metric Standard O-Ring N/A Silicone N/A N/A 1.78 mm N/A 70 N/A 21.47 mm N/A O-rings are used in the military, automotive,
21.95 X 1.78 S-70 N/A
133675 		N/A Metric Standard O-Ring N/A Silicone N/A 20 N/A 1.78 mm N/A 70 N/A 21.95 mm N/A O-rings are used in the military, automotive,
23.52 X 1.78 S-70 N/A
133676 		N/A Metric Standard O-Ring N/A Silicone N/A 21 N/A 1.78 mm N/A 70 N/A 23.52 mm N/A O-rings are used in the military, automotive,
25.12 X 1.78 S-70 N/A
133677 		N/A Metric Standard O-Ring N/A Silicone N/A 22 N/A 1.78 mm N/A 70 N/A 25.12 mm N/A O-rings are used in the military, automotive,
26.7 X 1.78 S-70 N/A
133678 		N/A Metric Standard O-Ring N/A Silicone N/A 23 N/A 1.78 mm N/A 70 N/A 26.70 mm N/A O-rings are used in the military, automotive,
28.3 X 1.78 S-70 N/A
133679 		N/A Metric Standard O-Ring N/A Silicone N/A 24 N/A 1.78 mm N/A 70 N/A 28.30 mm N/A O-rings are used in the military, automotive,
29.87 X 1.78 S-70 N/A
133680 		N/A Metric Standard O-Ring N/A Silicone N/A 25 N/A 1.78 mm N/A 70 N/A 29.87 mm N/A O-rings are used in the military, automotive,
31.47 X 1.78 S-70 N/A
133681 		N/A Metric Standard O-Ring N/A Silicone N/A 26 N/A 1.78 mm N/A 70 N/A 31.47 mm N/A O-rings are used in the military, automotive,
33.05 X 1.78 S-70 N/A
133682 		N/A Metric Standard O-Ring N/A Silicone N/A 27 N/A 1.78 mm N/A 70 N/A 33.05 mm N/A O-rings are used in the military, automotive,
34.65 X 1.78 S-70 N/A
133683 		N/A Metric Standard O-Ring N/A Silicone N/A 28 N/A 1.78 mm N/A 70 N/A 34.65 mm N/A O-rings are used in the military, automotive,
36 X 1.78 S-70 N/A
133684 		N/A Metric Standard O-Ring N/A Silicone N/A N/A 1.78 mm N/A 70 N/A 36.00 mm N/A O-rings are used in the military, automotive,
36.27 X 1.78 S-70 N/A
133685 		N/A Metric Standard O-Ring N/A Silicone N/A BS517 N/A 1.78 mm N/A 70 N/A 36.27 mm N/A O-rings are used in the military, automotive,
37.82 X 1.78 S-70 N/A
133686 		N/A Metric Standard O-Ring N/A Silicone N/A 29 N/A 1.78 mm N/A 70 N/A 37.82 mm N/A O-rings are used in the military, automotive,
39.45 X 1.78 S-70 N/A
133687 		N/A Metric Standard O-Ring N/A Silicone N/A BS519 N/A 1.78 mm N/A 70 N/A 39.45 mm N/A O-rings are used in the military, automotive,
41 X 1.78 S-70 N/A
133688 		N/A Metric Standard O-Ring N/A Silicone N/A 30 N/A 1.78 mm N/A 70 N/A 41.00 mm N/A O-rings are used in the military, automotive,
44.17 X 1.78 S-70 N/A
133689 		N/A Metric Standard O-Ring N/A Silicone N/A 31 N/A 1.78 mm N/A 70 N/A 44.17 mm N/A O-rings are used in the military, automotive,
45.84 X 1.78 S-70 N/A
133690 		N/A Metric Standard O-Ring N/A Silicone N/A N/A 1.78 mm N/A 70 N/A 45.84 mm N/A O-rings are used in the military, automotive,
47.35 X 1.78 S-70 N/A
133691 		N/A Metric Standard O-Ring N/A Silicone N/A 32 N/A 1.78 mm N/A 70 N/A 47.35 mm N/A O-rings are used in the military, automotive,
Unit of Measure
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