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 5910-01-188-8442
NSN 5975-00-658-3718
NSN 5950-01-361-8109
NSN 6130-00-702-7713
NSN 5935-01-125-9333
NSN 5925-00-966-7171
NSN 5998-01-030-1389
NSN 7035-01-565-3155
NSN 6650-01-509-8018
NSN 5930-00-824-0378
NSN 5935-00-573-1347
NSN 6150-00-580-0511