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 6110-00-736-0367
NSN 6220-01-298-6836
NSN 5945-01-622-7568
NSN 6645-00-113-4441
NSN 5910-01-160-3073
NSN 6135-00-078-9931
NSN 5910-01-476-8897
NSN 5998-01-099-1822
NSN 5925-00-529-0441
NSN 5975-00-823-0979
NSN 5975-01-446-5260
NSN 5935-01-189-6477