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 5975-01-607-2026
NSN 6110-01-222-5298
NSN 5920-00-100-2582
NSN 5920-01-593-7909
NSN 6145-01-506-0577
NSN 5905-00-518-4537
NSN 5910-01-173-8966
NSN 6220-01-297-3218
NSN 6130-00-525-9975
NSN 5990-01-020-6841
NSN 7035-00-225-6499
NSN 6150-01-176-2639