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 5835-01-302-6844
NSN 6620-00-030-2894
NSN 5925-01-231-8132
NSN 6645-01-034-6037
NSN 6650-00-774-7078
NSN 5999-00-617-7079
NSN 5935-00-940-3140
NSN 6610-01-485-3074
NSN 6645-01-144-2161
NSN 6645-01-221-3704
NSN 6240-00-280-0186
NSN 2925-00-311-0825