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 5930-01-187-2540
NSN 5935-01-606-1460
NSN 5975-01-277-3387
NSN 5975-00-771-6691
NSN 5996-01-485-5920
NSN 6135-01-453-5069
NSN 5920-00-678-7467
NSN 5920-00-406-2712
NSN 6220-00-144-8043
NSN 2925-01-025-0082
NSN 5999-01-357-6399
NSN 5985-01-072-5510