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 5910-01-275-1949
NSN 6620-00-203-9466
NSN 5996-01-437-6577
NSN 6650-00-098-6128
NSN 6620-01-401-5356
NSN 5965-01-631-9848
NSN 6240-01-104-5085
NSN 6135-01-054-2462
NSN 5999-00-808-9793
NSN 4140-00-635-9195
NSN 5985-00-927-6059
NSN 5965-00-529-0602