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 5950-01-047-3352
NSN 5930-01-022-1832
NSN 5996-01-392-4659
NSN 6610-00-025-1878
NSN 5965-00-839-0302
NSN 5999-00-858-4270
NSN 5999-01-332-4600
NSN 5996-01-648-6675
NSN 6130-00-212-4883
NSN 4140-01-324-6331
NSN 6105-01-247-2269
NSN 5920-00-521-8331