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 6105-01-336-4882
NSN 2925-01-238-8679
NSN 5895-01-565-1368
NSN 6130-00-786-1775
NSN 6110-00-019-3485
NSN 7035-00-991-6877
NSN 5855-01-301-0158
NSN 5999-01-508-8446
NSN 7035-01-068-4175
NSN 6110-01-052-4114
NSN 6620-00-186-8220
NSN 5935-00-953-1397