Historical
SAE AS 47A-1944 (SAE AS47A-1944)
Pump, Fuel, Mounting Pad and Drive ( Reaffirmed: Jul 1991 May 1995 Feb 2004 )
Inactive for new design after 1973. Primarily for pump, fuel, mounting pad and drive. To be capable of driving a continuous load requiring 25 pound-inches torque at any engine speed and of withstanding 450 pound-inches static torque without damage to the drive shaft or other engine parts.
Society of Automotive Engineers [sae]