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 6320-01-225-9963
NSN 5920-00-927-5568
NSN 6135-00-100-8890
NSN 6110-00-945-1101
NSN 7035-01-103-6845
NSN 6620-00-010-8190
NSN 5935-01-264-9605
NSN 5925-01-195-2304
NSN 6240-01-333-5455
NSN 5920-01-144-7878
NSN 5945-01-124-3658
NSN 5920-01-568-7192