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 5920-01-255-0816
NSN 6130-01-297-7953
NSN 5975-00-405-4848
NSN 5895-00-376-5074
NSN 5945-00-756-0455
NSN 5998-01-461-2784
NSN 4140-00-557-7001
NSN 5925-01-401-5314
NSN 5905-01-217-2454
NSN 5910-01-260-1816
NSN 5895-00-228-7993
NSN 6320-01-624-0193