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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. Perfluoroelastomer is also known as FKKM and Perfloro.

Parts resist over 1,800 different chemicals, while offering the high temperature stability of PTFE (327°C). They’re used in aggressive chemical processing, pharmaceutical, oil rcovery, gas recovery, and aerospace applications. The proven, long-term performance of Kalrez® parts can mean less repairs, seal changes, inspections and equipment uptime for greater productivity and yield. 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
1.78 X 1.78 KALREZ-75 N/A
157836 		N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A 4 N/A 1.78 mm N/A 75 N/A 1.78 mm N/A O-rings are used in the military, automotive,
1.78 X 1.78 KALREZ-90 N/A
157837 		N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A 4 N/A 1.78 mm N/A 90 N/A 1.78 mm N/A O-rings are used in the military, automotive,
1.8 X 0.7 KALREZ-70 N/A
157838 		N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 0.70 mm N/A 70 N/A 1.80 mm N/A O-rings are used in the military, automotive,
1.8 X 0.7 KALREZ-75 N/A
157839 		N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 0.70 mm N/A 75 N/A 1.80 mm N/A O-rings are used in the military, automotive,
1.8 X 0.7 KALREZ-90 N/A
157840 		N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 0.70 mm N/A 90 N/A 1.80 mm N/A O-rings are used in the military, automotive,
1.8 X 1 KALREZ-70 N/A
157841 		N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 1.00 mm N/A 70 N/A 1.80 mm N/A O-rings are used in the military, automotive,
1.8 X 1 KALREZ-75 N/A
157842 		N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 1.00 mm N/A 75 N/A 1.80 mm N/A O-rings are used in the military, automotive,
1.8 X 1 KALREZ-90 N/A
157843 		N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 1.00 mm N/A 90 N/A 1.80 mm N/A O-rings are used in the military, automotive,
1.8 X 1.8 KALREZ-70 N/A
157844 		N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 1.80 mm N/A 70 N/A 1.80 mm N/A O-rings are used in the military, automotive,
1.8 X 1.8 KALREZ-75 N/A
157846 		N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 1.80 mm N/A 75 N/A 1.80 mm N/A O-rings are used in the military, automotive,
1.8 X 1.8 KALREZ-90 N/A
157848 		N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 1.80 mm N/A 90 N/A 1.80 mm N/A O-rings are used in the military, automotive,
1.85 X 1.5 KALREZ-70 N/A
157850 		N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 1.50 mm N/A 70 N/A 1.85 mm N/A O-rings are used in the military, automotive,
1.85 X 1.5 KALREZ-75 N/A
157851 		N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 1.50 mm N/A 75 N/A 1.85 mm N/A O-rings are used in the military, automotive,
1.85 X 1.5 KALREZ-90 N/A
157852 		N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 1.50 mm N/A 90 N/A 1.85 mm N/A O-rings are used in the military, automotive,
10 X 1 KALREZ-70 N/A
157853 		N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 1.00 mm N/A 70 N/A 10.00 mm N/A O-rings are used in the military, automotive,
10 X 1 KALREZ-75 N/A
157854 		N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 1.00 mm N/A 75 N/A 10.00 mm N/A O-rings are used in the military, automotive,
10 X 1 KALREZ-90 N/A
157855 		N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 1.00 mm N/A 90 N/A 10.00 mm N/A O-rings are used in the military, automotive,
10 X 1.3 KALREZ-70 N/A
157856 		N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 1.30 mm N/A 70 N/A 10.00 mm N/A O-rings are used in the military, automotive,
10 X 1.3 KALREZ-75 N/A
157857 		N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 1.30 mm N/A 75 N/A 10.00 mm N/A O-rings are used in the military, automotive,
10 X 1.3 KALREZ-90 N/A
157858 		N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 1.30 mm N/A 90 N/A 10.00 mm N/A O-rings are used in the military, automotive,
10 X 1.5 KALREZ-70 N/A
157859 		N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 1.50 mm N/A 70 N/A 10.00 mm N/A O-rings are used in the military, automotive,
10 X 1.5 KALREZ-75 N/A
157860 		N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 1.50 mm N/A 75 N/A 10.00 mm N/A O-rings are used in the military, automotive,
10 X 1.5 KALREZ-90 N/A
157861 		N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 1.50 mm N/A 90 N/A 10.00 mm N/A O-rings are used in the military, automotive,
10 X 2 KALREZ-70 N/A
157862 		N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 2.00 mm N/A 70 N/A 10.00 mm N/A O-rings are used in the military, automotive,
10 X 2 KALREZ-75 N/A
157863 		N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 2.00 mm N/A 75 N/A 10.00 mm N/A O-rings are used in the military, automotive,
Unit of Measure
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