ISO 6621-4:2015
Superseded
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
View Superseded by
Internal combustion engines — Piston rings — Part 4: General specifications
Available format(s)
Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users
Superseded date
01-05-2024
Language(s)
English
Published date
18-03-2015
ISO 6621-4:2015 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.
| Committee |
ISO/TC 22/SC 34
|
| DevelopmentNote |
Supersedes ISO/DIS 6621-4. (03/2015)
|
| DocumentType |
Standard
|
| Pages |
28
|
| PublisherName |
International Organization for Standardization
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes | |
| UnderRevision |
| Standards | Relationship |
| BS ISO 6621-4:2015 | Identical |
| UNI ISO 6621-4 : 1992 | Identical |
| NF ISO 6621-4 : 1989 | Identical |
| DIN 70909:1987-02 | Similar to |
| UNE 26417-4:1994 | Identical |
| DIN ISO 6621-4:1990-06 | Identical |
| BS ISO 6626-3:2008 | Internal combustion engines. Piston rings Coil-spring-loaded oil control rings made of steel |
| DIN V 76624:1990-06 | INTERNAL COMBUSTION ENGINES - PISTON RINGS - HALF KEYSTONE RINGS |
| 12/30232970 DC : 0 | BS ISO 6623 - INTERNAL COMBUSTION ENGINES - PISTON RINGS - SCRAPER RINGS MADE OF CAST IRON |
| BS ISO 6624-2:2016 | Internal combustion engines. Piston rings Half keystone rings made of cast iron |
| BS ISO 6621-5:2013 | Internal combustion engines. Piston rings Quality requirements |
| DIN ISO 6622-1:1990-06 | INTERNAL COMBUSTION ENGINES; PISTON RINGS; RECTANGULAR RINGS |
| BS DD212(1992) : 1992 | PISTON RINGS UP TO 200mm DIAMETER FOR RECIPROCATING INTERNAL COMBUSTION ENGINES: SPECIFICATION FOR EXPANDER/SEGMENT OIL CONTROL RINGS |
| ISO 6624-2:2016 | Internal combustion engines — Piston rings — Part 2: Half keystone rings made of cast iron |
| ISO 6627:2011 | Internal combustion engines Piston rings Expander/segment oil-control rings |
| 12/30242897 DC : 0 | BS ISO 6624-2 - INTERNAL COMBUSTION ENGINES - PISTON RINGS - PART 2: HALF KEYSTONE RINGS MADE OF CAST IRON |
| 04/19980487 DC : DRAFT AUG 2004 | BS ISO 6621-5 - INTERNAL COMBUSTION ENGINES - PISTON RINGS - PART 5: QUALITY REQUIREMENTS |
| BS ISO 6624-4:2016 | Internal combustion engines. Piston rings Half keystone rings made of steel |
| 16/30340311 DC : DRAFT JUNE 2016 | BS ISO 6626-2 - INTERNAL COMBUSTION ENGINES - PISTON RINGS - PART 2: COIL-SPRING-LOADED OIL CONTROL RINGS OF NARROW WIDTH MADE OF CAST IRON |
| 15/30320008 DC : 0 | BS ISO 6626-3 - INTERNAL COMBUSTION ENGINES - PISTON RINGS - PART 3: COIL-SPRING-LOADED OIL CONTROL RINGS MADE OF STEEL |
| DIN V 76622:1990-06 | INTERNAL COMBUSTION ENGINES - PISTON RINGS - RECTANGULAR RINGS WITH NARROW RING WIDTH |
| SAE J 2275 : 2010 (R2018) | INTERNAL COMBUSTION ENGINES - PISTON RING-GROOVES |
| ISO 6625:1986 | Internal combustion engines Piston rings Oil control rings |
| ISO 6626:1989 | Internal combustion engines — Piston rings — Coil-spring-loaded oil control rings |
| ISO/TR 6627:1992 | Internal combustion engines Piston rings Expander/segment oil control rings |
| 98/716688 DC : DRAFT NOV 1998 | ISO/DIS 6624-1 - INTERNAL COMBUSTION ENGINES - PISTON RINGS - PART 1: KEYSTONE RINGS MADE OF CAST IRON |
| BS ISO 6622-2:2013 | Internal combustion engines. Piston rings Rectangular rings made of steel |
| BS ISO 6622-1:2003 | Internal combustion engines. Piston rings Rectangular rings made of cast iron |
| 11/30211186 DC : 0 | BS ISO 6621-5 - INTERNAL COMBUSTION ENGINES - PISTON RINGS - PART 5: QUALITY REQUIREMENTS |
| 16/30340802 DC : 0 | BS ISO 6626-1 - INTERNAL COMBUSTION ENGINES - PISTON RINGS - PART 1: COIL-SPRING-LOADED OIL CONTROL RINGS MADE OF CAST IRON |
| 15/30320002 DC : 0 | BS ISO 6624-1 - INTERNAL COMBUSTION ENGINES - PISTON RINGS - PART 1: KEYSTONE RINGS MADE OF CAST IRON |
| ISO 6624-3:2017 | Internal combustion engines — Piston rings — Part 3: Keystone rings made of steel |
| BS ISO 6624-3:2017 | Internal combustion engines. Piston rings Keystone rings made of steel |
| ISO 6621-1:2018 | Internal combustion engines — Piston rings — Part 1: Vocabulary |
| 11/30211189 DC : 0 | BS ISO 6622-2 - INTERNAL COMBUSTION ENGINES - PISTON RINGS - PART 2: RECTANGULAR RINGS MADE OF STEEL |
| ISO 6623:2013 | Internal combustion engines — Piston rings — Scraper rings made of cast iron |
| 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/TR 6624-2:1988 | Internal combustion engines — Piston rings — Part 2: Half keystone rings |
| 12/30242900 DC : 0 | BS ISO 6624-4 - INTERNAL COMBUSTION ENGINES - PISTON RINGS - PART 4: HALF KEYSTONE RINGS MADE OF STEEL |
| BS ISO 6626-2:2013 | Internal combustion engines. Piston rings Coil-spring-loaded oil control rings of narrow width made of cast iron |
| 15/30320005 DC : 0 | BS ISO 6624-3 - INTERNAL COMBUSTION ENGINES - PISTON RINGS - PART 3: KEYSTONE RINGS MADE OF STEEL |
| BS ISO 6627:2011 | Internal combustion engines. Piston rings. Expander/segment oil-control rings |
| BS ISO 6623:2013 | Internal combustion engines. Piston rings. Scraper rings made of cast iron |
| BS ISO 6624-1:2017 | Internal combustion engines. Piston rings Keystone rings made of cast iron |
| ISO 6622-2:2013 | Internal combustion engines — Piston rings — Part 2: Rectangular rings made of steel |
| ISO 6626-3:2008 | Internal combustion engines Piston rings Part 3: Coil-spring-loaded oil control rings made of steel |
| ISO 6624-4:2016 | Internal combustion engines — Piston rings — Part 4: Half keystone rings made of steel |
| ISO 6621-5:2013 | Internal combustion engines Piston rings Part 5: Quality requirements |
| 12/30211192 DC : 0 | BS ISO 6626-2 - INTERNAL COMBUSTION ENGINES - PISTON RINGS - PART 2: COIL-SPRING-LOADED OIL CONTROL RINGS OF NARROW WIDTH MADE OF CAST IRON |
| 07/30163269 DC : 0 | BS ISO 6626-3 - INTERNAL COMBUSTION ENGINES - PISTON RINGS - PART 3: COIL-SPRING-LOADED AND NITRIDED OIL CONTROL RINGS MADE OF STEEL |
| 08/30179075 DC : DRAFT SEP 2008 | BS ISO 6627 - INTERNAL COMBUSTION ENGINES - PISTON RINGS - EXPANDER/SEGMENT OIL-CONTROL RINGS |
| ISO/TR 6622-2:1988 | Internal combustion engines Piston rings Part 2: Rectangular rings with narrow ring width |
| ISO 6622-1:2003 | Internal combustion engines Piston rings Part 1: Rectangular rings made of cast iron |
| ISO 6624-1:2017 | Internal combustion engines — Piston rings — Part 1: Keystone rings made of cast iron |
| 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 |
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