This SAE Standard specifies the nominal dimensions and tolerances which affect the interchangeability between companion flanges and mating parts. The flanges covered by this document are designated type A and type S. The type A flanges are equivalent to type A ISO 7646. The type S flanges are equivalent to the type S ISO 7647. Type A is an external (male) pilot construction and type S is an internal (female) pilot construction. These flanges are not interchangeable. Dimensions not specified are left to the discretion of the component manufacturer.
SAE J1946-2001 history
2016SAE J1946-2016 Companion Flanges@ Type A (External Pilot) and Type S (Internal Pilot)
2007SAE J1946-2007 Companion Flanges, Type A (External Pilot) and Type S (Internal Pilot)
2001SAE J1946-2001 Companion Flanges, Type A (External Pilot) and Type S (Internal Pilot)
1991SAE J1946-1991 Companion Flanges@ Type A (External Pilot) and Type S (Internal Pilot
1990SAE J1946-1990 COMPANION FLANGES@ TYPE A (EXTERNAL PILOT) AND TYPE S (INTERNAL PILOT)