FED-STD-H28/9 Complete Document History
Section 9, Gas Cylinder Valve Outlet & Inlet Threads, Screw-Threads Standards for Fede

Complete Current Edition:
   REVISION A - SECTION 9, GAS CYLINDER VALVE - March 24, 1989
   REV A VALIDATION 1 - VALIDATION NOTICE 1, REV A - Feb. 8, 1995
   REV A VALIDATION 2 - VALIDATION NOTICE 2, REV A - Sept. 10, 2001
   REV A VALIDATION 3 - VALIDATION NOTICE 3, REV A - Aug. 29, 2006
   REV A VALIDATION 4 - VALIDATION NOTICE 4 FOR REVISION A - Feb. 27, 2019

Obsolete Revision Information:
   BASE - SECTION 9, GAS CYLINDER VALVE - Aug. 31, 1978