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 6110-01-285-0315
NSN 5925-01-131-7584
NSN 6320-01-203-4303
NSN 5999-00-189-8191
NSN 5920-01-293-9921
NSN 6650-01-501-7061
NSN 5996-01-260-2739
NSN 6220-01-149-4177
NSN 5950-01-367-4516
NSN 5950-01-453-1772
NSN 5925-01-270-2736
NSN 5930-01-359-0711