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 6650-01-175-0841
NSN 5895-01-610-6692
NSN 5975-01-335-0172
NSN 6650-01-195-2896
NSN 5945-01-367-6469
NSN 5930-01-329-7207
NSN 5920-01-578-6628
NSN 5935-01-063-1022
NSN 6320-01-592-6248
NSN 6105-01-576-5477
NSN 6130-01-191-0305
NSN 6685-01-352-5437