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 5935-01-614-3349
NSN 5999-00-455-0787
NSN 5998-01-218-5727
NSN 6240-01-428-9410
NSN 6645-01-468-4990
NSN 4140-01-559-6034
NSN 5975-00-246-4347
NSN 7035-00-803-3056
NSN 6620-00-456-0404
NSN 6240-00-342-9756
NSN 6220-01-499-9978
NSN 5945-00-162-5950