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 6650-01-633-9147
NSN 6240-00-275-1950
NSN 7035-01-520-7243
NSN 7035-00-585-2113
NSN 5835-01-406-4066
NSN 5985-01-431-5813
NSN 5855-00-149-0766
NSN 6685-01-095-2966
NSN 5985-01-144-7748
NSN 5915-01-625-8393
NSN 5960-01-122-2686
NSN 5910-00-554-1422