Seals & O-rings standards

Lip seals, O-rings, mechanical seals. 20 standards from 8 publishers, ICS 21.140; 23.100.60.

Replaced: use the replacement (3)

DIN 3771-1 Replaced
Fluid systems - O-rings - dimensions · DIN 3771-1:1984-12
IS 5129 (Part 1) Replaced
Rotary shaft lip type seals - nominal dimensions and tolerances · IS 5129 (Part 1):2000
IS 9975 (Part 1) Replaced
Specification for O-rings - dimensions · IS 9975 (Part 1):1981

API 682 Current
Pump shaft sealing systems · API 682 4th ed., 2014 (R2022)
ARPM OS-4 Current
Application guide for radial lip type shaft seals · ARPM OS-4 (listed 2023; edition year unconfirmed)
DIN 3760 Current
Rotary shaft lip seals, types A/AS · DIN 3760 1996-09
DIN 3761 Current
Lip seals, automotive/heavy duty types · DIN 3761-1 2026-11
DIN ISO 3601-1 Current
O-rings - part 1 (ISO 3601-1:2012 + Amd 1:2019) · DIN ISO 3601-1:2026-07
EN 12756 Current
Mechanical seal principal dimensions (ex DIN 24960) · EN 12756 2000
IS 17891 Current
Fluid power systems - O-rings (parts 1 to 5) · IS 17891 (Parts 1-5):2023
IS/ISO 6194-1 Current
Rotary shaft lip seals - nominal dimensions and tolerances · IS/ISO 6194 (Part 1):2007 (reaffirmed 2019)
ISO 3601-1 Current
O-ring sizes, tolerances, designation · ISO 3601-1:2012 + Cor 1:2012, Amd 1:2019
ISO 3601-2 Current
O-rings - housing dimensions for general applications · ISO 3601-2:2025
ISO 3601-3 Current
O-rings - quality acceptance criteria · ISO 3601-3:2005 + Amd 1:2018
ISO 6194-1 Current
Rotary shaft lip seals - nominal dimensions and tolerances · ISO 6194-1:2007
ISO 6194-3 Current
Lip seals: storage, handling, installation · ISO 6194-3:2009
ISO 21049 Current
Pump shaft sealing systems · ISO 21049:2004
JIS B 2401-1 Current
O-rings - part 1: O-rings · JIS B 2401-1:2012
JIS B 2402-1 Current
Oil seals - part 1: dimensions and tolerances · JIS B 2402-1:2013
SAE AS568 Current
Aerospace size standard for O-rings · AS568F (2020, reaffirmed 2026)