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ISO/DIS 6624-1

Internal combustion engines — Piston rings — Part 1: Keystone rings made of cast iron

General information

40.20     Feb 13, 2026

ISO

ISO/TC 22/SC 34

International Standard

43.060.10  

Scope

ISO 6624-1:2017 specifies the essential dimensional features of keystone rings made of cast iron, types T, TB, TBA, TM, K, KB, KBA and KM, having diameters from 70 mm up to and including 200 mm, used in reciprocating internal combustion piston engines.

Life cycle

PREVIOUSLY

PUBLISHED
ISO 6624-1:2017

NOW

IN_DEVELOPMENT
ISO/DIS 6624-1
40.20 DIS ballot initiated: 12 weeks
Feb 13, 2026

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