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 5930-01-391-3384
NSN 6130-00-706-6619
NSN 6610-01-375-1527
NSN 5990-00-791-4064
NSN 2925-01-231-6312
NSN 5910-01-436-6548
NSN 5998-01-573-2058
NSN 5895-01-188-7470
NSN 5925-01-100-4029
NSN 6620-01-515-9597
NSN 5835-00-015-3605
NSN 6220-01-647-9134