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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
108 X 3.5 KALREZ-75 N/A
158214
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 3.50 mm N/A 75 N/A 108.00 mm N/A O-rings are used in the military, automotive,
108 X 3.5 KALREZ-90 N/A
158215
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 3.50 mm N/A 90 N/A 108.00 mm N/A O-rings are used in the military, automotive,
108 X 4 KALREZ-70 N/A
158216
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 4.00 mm N/A 70 N/A 108.00 mm N/A O-rings are used in the military, automotive,
108 X 4 KALREZ-75 N/A
158217
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 4.00 mm N/A 75 N/A 108.00 mm N/A O-rings are used in the military, automotive,
108 X 4 KALREZ-90 N/A
158218
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 4.00 mm N/A 90 N/A 108.00 mm N/A O-rings are used in the military, automotive,
108 X 5 KALREZ-70 N/A
158219
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 5.00 mm N/A 70 N/A 108.00 mm N/A O-rings are used in the military, automotive,
108 X 5 KALREZ-75 N/A
158220
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 5.00 mm N/A 75 N/A 108.00 mm N/A O-rings are used in the military, automotive,
108 X 5 KALREZ-90 N/A
158221
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 5.00 mm N/A 90 N/A 108.00 mm N/A O-rings are used in the military, automotive,
108 X 6 KALREZ-70 N/A
158222
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 6.00 mm N/A 70 N/A 108.00 mm N/A O-rings are used in the military, automotive,
108 X 6 KALREZ-75 N/A
158223
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 6.00 mm N/A 75 N/A 108.00 mm N/A O-rings are used in the military, automotive,
108 X 6 KALREZ-90 N/A
158224
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 6.00 mm N/A 90 N/A 108.00 mm N/A O-rings are used in the military, automotive,
108 X 8 KALREZ-70 N/A
158225
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 8.00 mm N/A 70 N/A 108.00 mm N/A O-rings are used in the military, automotive,
108 X 8 KALREZ-75 N/A
158226
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 8.00 mm N/A 75 N/A 108.00 mm N/A O-rings are used in the military, automotive,
108 X 8 KALREZ-90 N/A
158227
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 8.00 mm N/A 90 N/A 108.00 mm N/A O-rings are used in the military, automotive,
109 X 2 KALREZ-70 N/A
158228
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 2.00 mm N/A 70 N/A 109.00 mm N/A O-rings are used in the military, automotive,
109 X 2 KALREZ-75 N/A
158229
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 2.00 mm N/A 75 N/A 109.00 mm N/A O-rings are used in the military, automotive,
109 X 2 KALREZ-90 N/A
158230
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 2.00 mm N/A 90 N/A 109.00 mm N/A O-rings are used in the military, automotive,
109 X 250 KALREZ-70 N/A
158231
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 250.00 mm N/A 70 N/A 109.00 mm N/A O-rings are used in the military, automotive,
109 X 250 KALREZ-75 N/A
158232
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 250.00 mm N/A 75 N/A 109.00 mm N/A O-rings are used in the military, automotive,
109 X 250 KALREZ-90 N/A
158233
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 250.00 mm N/A 90 N/A 109.00 mm N/A O-rings are used in the military, automotive,
109 X 3 KALREZ-70 N/A
158234
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 3.00 mm N/A 70 N/A 109.00 mm N/A O-rings are used in the military, automotive,
109 X 3 KALREZ-75 N/A
158235
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 3.00 mm N/A 75 N/A 109.00 mm N/A O-rings are used in the military, automotive,
109 X 3 KALREZ-90 N/A
158236
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 3.00 mm N/A 90 N/A 109.00 mm N/A O-rings are used in the military, automotive,
109 X 3.5 KALREZ-70 N/A
158237
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 3.50 mm N/A 70 N/A 109.00 mm N/A O-rings are used in the military, automotive,
109 X 3.5 KALREZ-75 N/A
158238
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 3.50 mm N/A 75 N/A 109.00 mm N/A O-rings are used in the military, automotive,
Unit of Measure
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