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ISO/DIS 6624-3

Internal combustion engines — Piston rings — Part 3: Keystone rings made of steel

General information

40.60     May 9, 2026

ISO

ISO/TC 22/SC 34

International Standard

43.060.10  

Scope

ISO 6624-3:2017 specifies the essential dimensional features of keystone rings made of steel, types T, TB, TBA, TM, K, KB, KBA and KM, having diameters from 70 mm up to and including 160 mm, used in reciprocating internal combustion piston engines.

Life cycle

PREVIOUSLY

PUBLISHED
ISO 6624-3:2017

NOW

PROJECT
ISO/DIS 6624-3
40.60 Close of voting
May 9, 2026