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 5996-00-952-7091
NSN 5998-00-456-0864
NSN 5920-01-241-3227
NSN 5930-01-619-6899
NSN 5945-01-177-2088
NSN 5960-01-244-1969
NSN 6135-00-299-6918
NSN 5960-00-266-6741
NSN 5998-01-576-5953
NSN 6320-00-270-8222
NSN 5920-00-824-4131
NSN 5999-01-254-2651