MIL-P-27456C, MILITARY SPECIFICATION: PURGING UNIT, AIR, LIQUID OXYGEN STORAGE TANKS, GSU-62/M (26 SEP 1967)
MIL-P-27456C, MILITARY SPECIFICATION: PURGING UNIT, AIR, LIQUID OXYGEN STORAGE TANKS, GSU-62/M (26 SEP 1967)., This specification covers a liquid-oxygen storage tank air purging unit, designated GSU-62/M.