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 7035-01-391-7470
NSN 5950-01-192-2904
NSN 6130-01-495-6320
NSN 7035-00-193-2269
NSN 5855-01-003-7102
NSN 6150-01-066-8942
NSN 6135-01-068-0119
NSN 2925-00-178-0940
NSN 6240-01-350-3533
NSN 5950-00-012-5455
NSN 6685-01-285-4537
NSN 5925-01-329-8216