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 6645-01-535-7136
NSN 5935-01-540-8001
NSN 5998-00-777-4417
NSN 5999-00-155-3088
NSN 6110-01-325-1884
NSN 5855-01-337-0245
NSN 5910-00-385-1149
NSN 6685-00-012-3734
NSN 2925-01-435-9057
NSN 5999-00-410-1402
NSN 5835-01-132-5894
NSN 6110-01-423-3676