GOST 621-1987
Piston rings for internal combustion engines. General specifications

Standard No.

GOST 621-1987

Release Date

1987

Published By

RU-GOST R

Latest

GOST 621-1987

Replace

GOST 621-1979 GOST 7133-1980 GOST 7295-1981

Scope

This standard applies to cast iron compression and oil scraper piston rings of internal combustion engines of nominal

GOST 621-1987 Referenced Document

• GOST 10905-1986 Surface plates and face-plates. Specifications
• GOST 14192-1977 Marking of cargo
• GOST 2789-1973 Surface roughness. Parameters and characteristics
• GOST 8.050-1973 State system for ensuring the uniformity of measurements. Reference conditions for linear and angular measuruments
• GOST 8.051-1981 State system for ensuring the uniformity measurements. Permissible errors of measurement of linear dimensions to 500 mm
• GOST 9.014-1978 Unified system of corrosion and ageing protection. Temporary corrosion protection of products. General requirements
• ISO 6621-3:1983 Internal combustion engines; Piston rings; Part 3 : Material specifications
• ISO 6622-1:1986 Internal combustion engines; Piston rings; Part 1 : Rectangular rings
• ISO 6623:1986 Internal combustion engines; Piston rings; Scraper rings
• ISO 6624-1:1986 Internal combustion engines; Piston rings; Part 1 : Keystone rings
• ISO 6625:1986 Internal combustion engines; Piston rings; Oil control rings

GOST 621-1987 history

• 1987 GOST 621-1987 Piston rings for internal combustion engines. General specifications
• 0000 GOST 7295-1981
• 0000 GOST 7133-1980
• 0000 GOST 621-1979