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 6135-01-171-9299
NSN 6130-00-530-3737
NSN 6320-01-412-2973
NSN 6130-01-296-9393
NSN 5910-01-612-6247
NSN 5835-00-912-5656
NSN 5935-00-296-4581
NSN 2925-01-511-5359
NSN 7035-00-403-5340
NSN 6650-01-415-6682
NSN 6220-01-459-8668
NSN 5895-01-158-2972