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 6130-00-792-1919
NSN 5998-00-541-8792
NSN 5910-01-451-3417
NSN 6150-01-392-7346
NSN 6320-00-139-1090
NSN 6685-01-188-2739
NSN 5855-00-177-3529
NSN 6145-01-322-5000
NSN 6150-01-608-5297
NSN 5855-01-512-1926
NSN 5996-01-660-2241
NSN 5999-01-159-4170