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 6685-00-546-9323
NSN 6240-01-111-5623
NSN 5920-01-244-3803
NSN 5960-01-141-6489
NSN 5996-01-268-1625
NSN 5925-01-312-1775
NSN 5935-00-470-7367
NSN 6145-00-617-4032
NSN 6150-01-316-7009
NSN 6110-00-191-9225
NSN 4140-01-560-8966
NSN 6135-01-205-5965