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 5930-00-153-1400
NSN 6645-00-551-8291
NSN 5990-01-014-9383
NSN 5910-00-112-2505
NSN 6650-00-698-1662
NSN 5925-01-483-1170
NSN 5990-01-008-2515
NSN 5855-01-382-8725
NSN 2925-01-510-9378
NSN 5835-00-673-2885
NSN 5935-00-243-1371
NSN 5920-00-177-2269