A-A-59440/4 Complete Document History
Cock-Valve, Drain, Ground Key, 150 PSI, Brass, Steam Pressure, NPTF-1 Threads

Complete Current Edition:
   REVISION D - Cock-Valve, Drain, Ground Key, 150 PSI, Brass, Steam Pressure, NPTF-1 Threads - July 2, 2020

Obsolete Revision Information:
   REVISION C - Cock-Valve, Drain, Ground Key, 150 PSI, Brass, Steam Pressure, NPTF-1 Threads - Dec. 6, 2018
   REVISION B - Cock-Valve, Drain, Ground Key, 150 PSI, Brass, Steam Pressure, NPTF-1 Threads - May 21, 2012
   REVISION A - COCK, DRAIN, GROUND KEY, 150 P.S.I., BRASS, STEAM PRESSURE, - May 23, 2005
   DRAFT REVISION A - OBSOLETE DRAFT DOCUMENT - June 22, 2004
   BASE - COCK, DRAIN, GROUND KEY, 150 P - Aug. 13, 1999