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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
109 X 3.5 KALREZ-90 N/A
158239
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 3.50 mm N/A 90 N/A 109.00 mm N/A O-rings are used in the military, automotive,
109 X 3.55 KALREZ-70 N/A
158240
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 3.55 mm N/A 70 N/A 109.00 mm N/A O-rings are used in the military, automotive,
109 X 3.55 KALREZ-75 N/A
158241
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 3.55 mm N/A 75 N/A 109.00 mm N/A O-rings are used in the military, automotive,
109 X 3.55 KALREZ-90 N/A
158242
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 3.55 mm N/A 90 N/A 109.00 mm N/A O-rings are used in the military, automotive,
109 X 4 KALREZ-70 N/A
158243
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 4.00 mm N/A 70 N/A 109.00 mm N/A O-rings are used in the military, automotive,
109 X 4 KALREZ-75 N/A
158244
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 4.00 mm N/A 75 N/A 109.00 mm N/A O-rings are used in the military, automotive,
109 X 4 KALREZ-90 N/A
158245
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 4.00 mm N/A 90 N/A 109.00 mm N/A O-rings are used in the military, automotive,
109 X 5 KALREZ-70 N/A
158246
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 5.00 mm N/A 70 N/A 109.00 mm N/A O-rings are used in the military, automotive,
109 X 5 KALREZ-75 N/A
158247
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 5.00 mm N/A 75 N/A 109.00 mm N/A O-rings are used in the military, automotive,
109 X 5 KALREZ-90 N/A
158248
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 5.00 mm N/A 90 N/A 109.00 mm N/A O-rings are used in the military, automotive,
109 X 5.3 KALREZ-70 N/A
158249
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 5.30 mm N/A 70 N/A 109.00 mm N/A O-rings are used in the military, automotive,
109 X 5.3 KALREZ-75 N/A
158250
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 5.30 mm N/A 75 N/A 109.00 mm N/A O-rings are used in the military, automotive,
109 X 5.3 KALREZ-90 N/A
158251
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 5.30 mm N/A 90 N/A 109.00 mm N/A O-rings are used in the military, automotive,
109 X 5.7 KALREZ-70 N/A
158252
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 5.70 mm N/A 70 N/A 109.00 mm N/A O-rings are used in the military, automotive,
109 X 5.7 KALREZ-75 N/A
158253
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 5.70 mm N/A 75 N/A 109.00 mm N/A O-rings are used in the military, automotive,
109 X 5.7 KALREZ-90 N/A
158254
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 5.70 mm N/A 90 N/A 109.00 mm N/A O-rings are used in the military, automotive,
109.1 X 5.7 KALREZ-70 N/A
158255
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 5.70 mm N/A 70 N/A 109.10 mm N/A O-rings are used in the military, automotive,
109.1 X 5.7 KALREZ-75 N/A
158256
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 5.70 mm N/A 75 N/A 109.10 mm N/A O-rings are used in the military, automotive,
109.1 X 5.7 KALREZ-90 N/A
158257
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 5.70 mm N/A 90 N/A 109.10 mm N/A O-rings are used in the military, automotive,
109.2 X 5.7 KALREZ-70 N/A
158258
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 5.70 mm N/A 70 N/A 109.20 mm N/A O-rings are used in the military, automotive,
109.2 X 5.7 KALREZ-75 N/A
158259
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 5.70 mm N/A 75 N/A 109.20 mm N/A O-rings are used in the military, automotive,
109.2 X 5.7 KALREZ-90 N/A
158260
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 5.70 mm N/A 90 N/A 109.20 mm N/A O-rings are used in the military, automotive,
109.3 X 5.7 KALREZ-70 N/A
158261
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 5.70 mm N/A 70 N/A 109.30 mm N/A O-rings are used in the military, automotive,
109.3 X 5.7 KALREZ-75 N/A
158262
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 5.70 mm N/A 75 N/A 109.30 mm N/A O-rings are used in the military, automotive,
109.3 X 5.7 KALREZ-90 N/A
158263
N/A Metric Standard O-Ring N/A Perfluoroelastomer N/A N/A 5.70 mm N/A 90 N/A 109.30 mm N/A O-rings are used in the military, automotive,
Unit of Measure
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