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 6105-01-554-9764
NSN 2925-01-541-5031
NSN 5855-01-128-1762
NSN 5920-00-733-8468
NSN 5910-00-079-0078
NSN 6105-00-306-4694
NSN 6135-01-490-7704
NSN 6620-00-144-7201
NSN 6610-00-658-6566
NSN 6650-01-512-1930
NSN 5835-01-632-6627
NSN 5950-01-514-7766