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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
15.5 X 2.5 KALREZ-90 N/A
159898
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 2.50 mm N/A 90 N/A 15.50 mm N/A O-rings are used in the military, automotive,
15.5 X 3 KALREZ-70 N/A
159899
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 3.00 mm N/A 70 N/A 15.50 mm N/A O-rings are used in the military, automotive,
15.5 X 3 KALREZ-75 N/A
159900
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 3.00 mm N/A 75 N/A 15.50 mm N/A O-rings are used in the military, automotive,
15.5 X 3 KALREZ-90 N/A
159901
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 3.00 mm N/A 90 N/A 15.50 mm N/A O-rings are used in the military, automotive,
15.5 X 4.5 KALREZ-70 N/A
159902
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 4.50 mm N/A 70 N/A 15.50 mm N/A O-rings are used in the military, automotive,
15.5 X 4.5 KALREZ-75 N/A
159903
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 4.50 mm N/A 75 N/A 15.50 mm N/A O-rings are used in the military, automotive,
15.5 X 4.5 KALREZ-90 N/A
159904
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 4.50 mm N/A 90 N/A 15.50 mm N/A O-rings are used in the military, automotive,
15.54 X 2.62 KALREZ-70 N/A
159905
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A 114 N/A 2.62 mm N/A 70 N/A 15.54 mm N/A O-rings are used in the military, automotive,
15.54 X 2.62 KALREZ-75 N/A
159906
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A 114 N/A 2.62 mm N/A 75 N/A 15.54 mm N/A O-rings are used in the military, automotive,
15.54 X 2.62 KALREZ-90 N/A
159907
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A 114 N/A 2.62 mm N/A 90 N/A 15.54 mm N/A O-rings are used in the military, automotive,
15.6 X 1.78 KALREZ-70 N/A
159908
N/A Metric Standard O-Ring N/A Perfluoroelastomer 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,
15.6 X 1.78 KALREZ-75 N/A
159909
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A 16 N/A 1.78 mm N/A 75 N/A 15.60 mm N/A O-rings are used in the military, automotive,
15.6 X 1.78 KALREZ-90 N/A
159910
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A 16 N/A 1.78 mm N/A 90 N/A 15.60 mm N/A O-rings are used in the military, automotive,
15.6 X 2.4 KALREZ-70 N/A
159911
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 2.40 mm N/A 70 N/A 15.60 mm N/A O-rings are used in the military, automotive,
15.6 X 2.4 KALREZ-75 N/A
159912
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 2.40 mm N/A 75 N/A 15.60 mm N/A O-rings are used in the military, automotive,
15.6 X 2.4 KALREZ-90 N/A
159913
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 2.40 mm N/A 90 N/A 15.60 mm N/A O-rings are used in the military, automotive,
15.8 X 2.4 KALREZ-70 N/A
159914
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A P16 N/A 2.40 mm N/A 70 N/A 15.80 mm N/A O-rings are used in the military, automotive,
15.8 X 2.4 KALREZ-75 N/A
159915
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A P16 N/A 2.40 mm N/A 75 N/A 15.80 mm N/A O-rings are used in the military, automotive,
15.8 X 2.4 KALREZ-90 N/A
159916
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A P16 N/A 2.40 mm N/A 90 N/A 15.80 mm N/A O-rings are used in the military, automotive,
15.88 X 2.62 KALREZ-70 N/A
159917
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A BS809 N/A 2.62 mm N/A 70 N/A 15.88 mm N/A O-rings are used in the military, automotive,
15.88 X 2.62 KALREZ-75 N/A
159918
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A BS809 N/A 2.62 mm N/A 75 N/A 15.88 mm N/A O-rings are used in the military, automotive,
15.88 X 2.62 KALREZ-90 N/A
159919
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A BS809 N/A 2.62 mm N/A 90 N/A 15.88 mm N/A O-rings are used in the military, automotive,
15.9 X 2.4 KALREZ-70 N/A
159920
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 2.40 mm N/A 70 N/A 15.90 mm N/A O-rings are used in the military, automotive,
15.9 X 2.4 KALREZ-75 N/A
159921
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 2.40 mm N/A 75 N/A 15.90 mm N/A O-rings are used in the military, automotive,
15.9 X 2.4 KALREZ-90 N/A
159922
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 2.40 mm N/A 90 N/A 15.90 mm N/A O-rings are used in the military, automotive,
Unit of Measure
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