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 4140-01-117-9555
NSN 5855-00-832-9341
NSN 5996-01-208-5045
NSN 6320-01-088-1109
NSN 5996-01-051-9430
NSN 6130-01-415-3345
NSN 6650-00-113-7698
NSN 5930-01-051-7895
NSN 5905-01-403-2806
NSN 5996-01-371-2958
NSN 5935-00-422-3705
NSN 5895-01-584-5545