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 5975-01-291-7029
NSN 5975-01-025-9990
NSN 6650-00-216-6365
NSN 6645-01-136-7403
NSN 5910-01-076-4454
NSN 6130-01-518-5260
NSN 5945-00-438-7896
NSN 6620-01-460-2322
NSN 6645-00-079-1430
NSN 5855-00-256-5562
NSN 2925-00-159-9003
NSN 6645-00-518-2068