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 5905-01-214-8476
NSN 5990-01-605-4769
NSN 5935-01-463-9275
NSN 5925-00-722-0471
NSN 6240-00-727-2457
NSN 5985-01-214-1540
NSN 6650-01-416-9869
NSN 6650-01-514-7809
NSN 5895-01-437-1087
NSN 5999-00-214-6572
NSN 6610-01-238-8712
NSN 5920-00-484-8074