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 5999-00-498-5927
NSN 5975-01-567-3651
NSN 7035-00-517-8232
NSN 6110-01-480-2436
NSN 5975-00-244-0706
NSN 5920-00-175-7987
NSN 6130-01-598-1944
NSN 6130-00-449-9674
NSN 5925-00-472-1371
NSN 6320-01-052-2118
NSN 6620-00-773-2931
NSN 4140-00-477-1863