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 6105-01-391-5390
NSN 6135-01-378-3331
NSN 5999-00-724-5552
NSN 6685-01-101-2574
NSN 6150-00-616-1541
NSN 6650-01-012-3290
NSN 6610-00-466-3104
NSN 5905-01-029-9877
NSN 6110-00-840-6560
NSN 7035-00-997-6212
NSN 5998-01-005-6085
NSN 6620-01-386-5543