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 5905-00-262-0046
NSN 6150-00-071-6899
NSN 5855-01-147-4785
NSN 6320-00-194-4252
NSN 5999-00-104-5582
NSN 5910-00-408-8859
NSN 6150-00-249-0071
NSN 5915-00-081-7815
NSN 5920-01-495-2571
NSN 5910-00-671-4063
NSN 5920-01-264-4950
NSN 2925-01-364-7926