MIL-G-174B (NOTICE 1), MILITARY SPECIFICATION: GLASS, OPTICAL (20 AUG 1988) [NO S/S DOCUMENT]

MIL-G-174B (NOTICE 1), MILITARY SPECIFICATION: GLASS, OPTICAL (20 AUG 1988) [NO S/S DOCUMENT]., MIL-G-174B dated 5 December 1986 is inactive for new design and no longer used except for replacement purposes.