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 5910-00-223-3137
NSN 5920-01-511-6441
NSN 5855-00-688-9954
NSN 5920-00-208-4891
NSN 4140-01-489-6004
NSN 5999-00-462-8296
NSN 6685-01-595-0034
NSN 5925-01-007-2049
NSN 7035-00-946-2642
NSN 6135-01-346-0851
NSN 5895-01-359-2040
NSN 5965-00-905-7561