Customer Support: 131 242

  • There are no items in your cart
We noticed you’re not on the correct regional site. Switch to our AMERICAS site for the best experience.
Dismiss alert

BS ISO 6621-4:2015

Current
Current

The latest, up-to-date edition.

Internal combustion engines. Piston rings General specifications
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

31-03-2015

This part of ISO6621 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 30mm up to and including 200mm.

Committee
MCE/22
DevelopmentNote
Supersedes BS 5341-6.4(1992) and 98/713927 DC. (12/2003) Supersedes 12/30242220 DC. (04/2015)
DocumentType
Standard
Pages
40
PublisherName
British Standards Institution
Status
Current
Supersedes

Standards Relationship
ISO 6621-4:2015 Identical

ISO 6622-2:2013 Internal combustion engines — Piston rings — Part 2: Rectangular rings made of steel
ISO 6621-2:2003 Internal combustion engines Piston rings Part 2: Inspection measuring principles
ISO 6624-2:2016 Internal combustion engines — Piston rings — Part 2: Half keystone rings made of cast iron
ISO 6624-3:2017 Internal combustion engines — Piston rings — Part 3: Keystone rings made of steel
ISO 6626-2:2013 Internal combustion engines Piston rings Part 2: Coil-spring-loaded oil control rings of narrow width made of cast iron
ISO 6624-1:2017 Internal combustion engines — Piston rings — Part 1: Keystone rings made of cast iron
ISO 6624-4:2016 Internal combustion engines — Piston rings — Part 4: Half keystone rings made of steel
ISO 6507-3:2005 Metallic materials Vickers hardness test Part 3: Calibration of reference blocks
ISO 6625:1986 Internal combustion engines Piston rings Oil control rings
ISO 6622-1:2003 Internal combustion engines Piston rings Part 1: Rectangular rings made of cast iron
ISO 6623:2013 Internal combustion engines Piston rings Scraper rings made of cast iron
ISO 6627:2011 Internal combustion engines Piston rings Expander/segment oil-control rings
ISO 6621-1:2007 Internal combustion engines Piston rings Part 1: Vocabulary
ISO 6626-3:2008 Internal combustion engines Piston rings Part 3: Coil-spring-loaded oil control rings made of steel

View more information
$478.43
Including GST where applicable

Access your standards online with a subscription

Features

  • Simple online access to standards, technical information and regulations.

  • Critical updates of standards and customisable alerts and notifications.

  • Multi-user online standards collection: secure, flexible and cost effective.

Need help?
Call us on 131 242, then click here to start a Screen Sharing session
so we can help right away! Learn more