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 5895-00-957-8029
NSN 6645-01-522-7447
NSN 5950-01-415-0276
NSN 7035-01-487-4038
NSN 6650-01-656-4068
NSN 4140-00-456-0902
NSN 6320-01-300-5350
NSN 6320-01-442-3428
NSN 5935-01-136-4638
NSN 6135-00-073-8939
NSN 5965-01-468-6186
NSN 6150-01-242-9828