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 5910-01-041-2862
NSN 5915-01-439-2249
NSN 5920-00-484-3185
NSN 5835-01-622-2556
NSN 5945-00-303-5313
NSN 6610-00-186-9180
NSN 5990-01-417-4402
NSN 5905-01-536-1561
NSN 6150-01-535-9807
NSN 5915-01-166-7999
NSN 5930-01-442-5807
NSN 6130-01-434-4987