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 6220-00-205-2040
NSN 6105-00-151-7528
NSN 5935-00-119-8887
NSN 6110-00-121-0975
NSN 6320-00-225-7013
NSN 5990-00-904-0896
NSN 6220-00-455-2414
NSN 5945-01-642-3813
NSN 5925-00-722-0471
NSN 5998-01-006-1824
NSN 5990-01-224-8052
NSN 5895-01-284-4615