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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
18.3 X 3.6 KALREZ-70 N/A
160829
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 3.60 mm N/A 70 N/A 18.30 mm N/A O-rings are used in the military, automotive,
18.3 X 3.6 KALREZ-75 N/A
160830
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 3.60 mm N/A 75 N/A 18.30 mm N/A O-rings are used in the military, automotive,
18.3 X 3.6 KALREZ-90 N/A
160831
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 3.60 mm N/A 90 N/A 18.30 mm N/A O-rings are used in the military, automotive,
18.4 X 2.7 KALREZ-70 N/A
160832
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 2.70 mm N/A 70 N/A 18.40 mm N/A O-rings are used in the military, automotive,
18.4 X 2.7 KALREZ-75 N/A
160833
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 2.70 mm N/A 75 N/A 18.40 mm N/A O-rings are used in the military, automotive,
18.4 X 2.7 KALREZ-90 N/A
160834
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 2.70 mm N/A 90 N/A 18.40 mm N/A O-rings are used in the military, automotive,
18.42 X 5.33 KALREZ-70 N/A
160835
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A 314 N/A 5.33 mm N/A 70 N/A 18.42 mm N/A O-rings are used in the military, automotive,
18.42 X 5.33 KALREZ-75 N/A
160836
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A 314 N/A 5.33 mm N/A 75 N/A 18.42 mm N/A O-rings are used in the military, automotive,
18.42 X 5.33 KALREZ-90 N/A
160837
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A 314 N/A 5.33 mm N/A 90 N/A 18.42 mm N/A O-rings are used in the military, automotive,
18.5 X 1 KALREZ-70 N/A
160838
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 1.00 mm N/A 70 N/A 18.50 mm N/A O-rings are used in the military, automotive,
18.5 X 1 KALREZ-75 N/A
160839
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 1.00 mm N/A 75 N/A 18.50 mm N/A O-rings are used in the military, automotive,
18.5 X 1 KALREZ-90 N/A
160840
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 1.00 mm N/A 90 N/A 18.50 mm N/A O-rings are used in the military, automotive,
18.5 X 1.5 KALREZ-70 N/A
160841
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 1.50 mm N/A 70 N/A 18.50 mm N/A O-rings are used in the military, automotive,
18.5 X 1.5 KALREZ-75 N/A
160842
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 1.50 mm N/A 75 N/A 18.50 mm N/A O-rings are used in the military, automotive,
18.5 X 1.5 KALREZ-90 N/A
160843
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 1.50 mm N/A 90 N/A 18.50 mm N/A O-rings are used in the military, automotive,
18.5 X 2 KALREZ-70 N/A
160844
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 2.00 mm N/A 70 N/A 18.50 mm N/A O-rings are used in the military, automotive,
18.5 X 2 KALREZ-75 N/A
160845
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 2.00 mm N/A 75 N/A 18.50 mm N/A O-rings are used in the military, automotive,
18.5 X 2 KALREZ-90 N/A
160846
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 2.00 mm N/A 90 N/A 18.50 mm N/A O-rings are used in the military, automotive,
18.5 X 2.5 KALREZ-70 N/A
160847
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 2.50 mm N/A 70 N/A 18.50 mm N/A O-rings are used in the military, automotive,
18.5 X 2.5 KALREZ-75 N/A
160848
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 2.50 mm N/A 75 N/A 18.50 mm N/A O-rings are used in the military, automotive,
18.5 X 2.5 KALREZ-90 N/A
160849
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 2.50 mm N/A 90 N/A 18.50 mm N/A O-rings are used in the military, automotive,
18.5 X 3 KALREZ-70 N/A
160850
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 3.00 mm N/A 70 N/A 18.50 mm N/A O-rings are used in the military, automotive,
18.5 X 3 KALREZ-75 N/A
160851
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 3.00 mm N/A 75 N/A 18.50 mm N/A O-rings are used in the military, automotive,
18.5 X 3 KALREZ-90 N/A
160852
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 3.00 mm N/A 90 N/A 18.50 mm N/A O-rings are used in the military, automotive,
18.6 X 2.4 KALREZ-70 N/A
160853
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 2.40 mm N/A 70 N/A 18.60 mm N/A O-rings are used in the military, automotive,
Unit of Measure
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