MIL-H-83147 (NOTICE 2), MILITARY SPECIFICATION: HELMET, SHELL, FLYING, HGU-22/P (26-SEP-2011) [S/S BY MIL-DTL-87174]

MIL-H-83147 (NOTICE 2), MILITARY SPECIFICATION: HELMET, SHELL, FLYING, HGU-22/P (26-SEP-2011) [S/S BY MIL-DTL-87174]., MIL-H-83147 (USAF), dated 5 October 1978, is hereby canceled. Future acquisitions for this item may refer to MIL-DTL-87174 (USAF), Helmet, Flyer�s HGU-55/P, dated 30 Oct 1998.