A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.
NSN 2925-01-331-5039
NSN 5999-00-960-7155
NSN 7035-00-320-5644
NSN 5910-01-551-6165
NSN 6110-00-900-6410
NSN 5935-00-648-3298
NSN 5975-00-686-7605
NSN 6135-01-215-1245
NSN 6105-01-458-1407
NSN 6320-01-582-6668
NSN 6110-01-115-3871
NSN 6220-01-028-8287