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 7035-00-624-7265
NSN 5925-01-237-2501
NSN 5935-01-381-9571
NSN 6650-01-317-9242
NSN 6130-00-459-7692
NSN 5985-00-501-1976
NSN 5905-01-112-2132
NSN 6645-01-143-7838
NSN 5965-01-063-7894
NSN 5996-00-583-9498
NSN 6610-01-020-3764
NSN 5920-00-092-8729