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 2925-00-127-7828
NSN 6620-01-298-6853
NSN 6620-01-247-9170
NSN 6145-01-462-5437
NSN 4140-00-826-9031
NSN 5930-01-305-0933
NSN 5950-00-535-2844
NSN 6105-01-014-5690
NSN 5920-00-155-2173
NSN 6685-00-988-3444
NSN 5930-01-108-8068
NSN 6150-01-573-7481