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ISO 3601-4:2008

Fluid power systems — O-rings — Part 4: Anti-extrusion rings (back-up rings) ISO 3601-4:2008

Publication date:   May 27, 2008

General information

90.93 Standard confirmed   Dec 13, 2023

ISO

ISO/TC 131/SC 7 Sealing devices

International Standard

23.100.60   Filters, seals and contamination of fluids | 83.140.50   Seals

Buying

Published

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Scope

ISO 3601-4:2008 specifies dimensions and tolerances for five types of anti-extrusion rings, which are also known as back-up rings:

spiral type (T1);
angle cut type (T2);
solid type (T3);
angle cut concave type (T4);
solid concave type (T5).

These anti-extrusion rings are for use with selected O-ring sizes as specified in ISO 3601-1 and the relevant housing dimensions specified in ISO 3601-2.

Life cycle

NOW

PUBLISHED
ISO 3601-4:2008
90.93 Standard confirmed
Dec 13, 2023