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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.

Polyurethane is also known as urethane, cast urethan and millable urethane. Exceptional tensile strength. Abrasion and low temperature resistance. Typical applications include hydraulic seals, gaskets, diaphragms, hoses, and wheels for skate boards. 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

Call for a Quote

Quantity
138 X 2.5 U-70 N/A
137969 		N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 2.50 mm N/A 70 N/A 138.00 mm N/A O-rings are used in the military, automotive,
138 X 3 U-70 N/A
137970 		N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 3.00 mm N/A 70 N/A 138.00 mm N/A O-rings are used in the military, automotive,
138 X 3.5 U-70 N/A
137971 		N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 3.50 mm N/A 70 N/A 138.00 mm N/A O-rings are used in the military, automotive,
138 X 4 U-70 N/A
137972 		N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 4.00 mm N/A 70 N/A 138.00 mm N/A O-rings are used in the military, automotive,
138 X 5 U-70 N/A
137973 		N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 5.00 mm N/A 70 N/A 138.00 mm N/A O-rings are used in the military, automotive,
138 X 6 U-70 N/A
137974 		N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 6.00 mm N/A 70 N/A 138.00 mm N/A O-rings are used in the military, automotive,
138.94 X 1.78 U-70 N/A
137975 		N/A Metric Standard O-Ring N/A Polyurethane N/A BS551 N/A 1.78 mm N/A 70 N/A 138.94 mm N/A O-rings are used in the military, automotive,
139 X 2.5 U-70 N/A
137976 		N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 2.50 mm N/A 70 N/A 139.00 mm N/A O-rings are used in the military, automotive,
139 X 3 U-70 N/A
137977 		N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 3.00 mm N/A 70 N/A 139.00 mm N/A O-rings are used in the military, automotive,
139 X 3.5 U-70 N/A
137978 		N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 3.50 mm N/A 70 N/A 139.00 mm N/A O-rings are used in the military, automotive,
139 X 4 U-70 N/A
137979 		N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 4.00 mm N/A 70 N/A 139.00 mm N/A O-rings are used in the military, automotive,
139 X 4.2 U-70 N/A
137980 		N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 4.20 mm N/A 70 N/A 139.00 mm N/A O-rings are used in the military, automotive,
139 X 5 U-70 N/A
137981 		N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 5.00 mm N/A 70 N/A 139.00 mm N/A O-rings are used in the military, automotive,
139.07 X 5.33 U-70 N/A
137982 		N/A Metric Standard O-Ring N/A Polyurethane N/A 357 N/A 5.33 mm N/A 70 N/A 139.07 mm N/A O-rings are used in the military, automotive,
139.07 X 6.99 U-70 N/A
137983 		N/A Metric Standard O-Ring N/A Polyurethane N/A 433 N/A 6.99 mm N/A 70 N/A 139.07 mm N/A O-rings are used in the military, automotive,
139.2 X 5.7 U-70 N/A
137984 		N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 5.70 mm N/A 70 N/A 139.20 mm N/A O-rings are used in the military, automotive,
139.2 X 6 U-70 N/A
137985 		N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 6.00 mm N/A 70 N/A 139.20 mm N/A O-rings are used in the military, automotive,
139.29 X 3.53 U-70 N/A
137986 		N/A Metric Standard O-Ring N/A Polyurethane N/A 254 N/A 3.53 mm N/A 70 N/A 139.29 mm N/A O-rings are used in the military, automotive,
139.3 X 5.7 U-70 N/A
137987 		N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 5.70 mm N/A 70 N/A 139.30 mm N/A O-rings are used in the military, automotive,
139.37 X 2.62 U-70 N/A
137988 		N/A Metric Standard O-Ring N/A Polyurethane N/A 161 N/A 2.62 mm N/A 70 N/A 139.37 mm N/A O-rings are used in the military, automotive,
139.4 X 3.1 U-70 N/A
137989 		N/A Metric Standard O-Ring N/A Polyurethane N/A G140 N/A 3.10 mm N/A 70 N/A 139.40 mm N/A O-rings are used in the military, automotive,
139.5 X 2 U-70 N/A
137990 		N/A Metric Standard O-Ring N/A Polyurethane N/A S140 N/A 2.00 mm N/A 70 N/A 139.50 mm N/A O-rings are used in the military, automotive,
139.5 X 3 U-70 N/A
137991 		N/A Metric Standard O-Ring N/A Polyurethane N/A N/A 3.00 mm N/A 70 N/A 139.50 mm N/A O-rings are used in the military, automotive,
139.6 X 5.7 U-70 N/A
137992 		N/A Metric Standard O-Ring N/A Polyurethane N/A P140 N/A 5.70 mm N/A 70 N/A 139.60 mm N/A O-rings are used in the military, automotive,
139.7 X 5.33 U-70 N/A
137993 		N/A Metric Standard O-Ring N/A Polyurethane N/A BS867 N/A 5.33 mm N/A 70 N/A 139.70 mm N/A O-rings are used in the military, automotive,
Unit of Measure
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