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ISO/WD 6624-4

Internal combustion engines — Piston rings — Part 4: Half keystone rings made of steel

General information

Current stage: 20.98 Effective date: 15 mar 2024

Originator: ISO

Owner: ISO/TC 22/SC 34

Type: International Standard

Scope

ISO 6624-4:2016 specifies the essential dimensional features of half keystone rings made of steel, types HK, HKB and HKBA, having nominal diameters from 50 mm up to, and including, 160 mm, used in reciprocating internal combustion piston engines for road vehicles and other applications.

ISO/WD 6624-4

Internal combustion engines — Piston rings — Part 4: Half keystone rings made of steel

General information

Scope

Life cycle

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