BSI 21/30434652 DC:2021 Edition

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BS ISO 6621-4. Internal combustion engines. Piston rings – Part 4. General specifications

Published By	Publication Date	Number of Pages
BSI	2021	37

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Description

This part of ISO 6621 specifies the general characteristics of piston rings for reciprocating internal combustion engines for road vehicles and other applications (the individual dimensional criteria for these rings are given in the relevant International Standards). It also provides a system for ring coding, designation, and marking. It is applicable to all such rings of a nominal diameter from 30 mm up to and including 200 mm.

Additional information

Status	Definitive
Pages	37
Publication Date	2021-10-20
Standard Number	21/30434652 DC
Title	BS ISO 6621-4. Internal combustion engines. Piston rings – Part 4. General specifications
Identical National Standard Of	ISO/DIS 6621-4
Publisher	BSI
Committee	MCE/22

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BSI 21/30434652 DC:2021 Edition

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