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 5920-01-202-4977
NSN 5975-00-253-4198
NSN 6150-00-279-9337
NSN 5975-00-755-3703
NSN 7035-01-555-8289
NSN 5910-01-421-1335
NSN 6145-01-269-2094
NSN 4140-01-454-7119
NSN 5925-01-564-3331
NSN 5930-01-558-7229
NSN 6620-01-197-8207
NSN 6145-00-141-8095