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 6220-00-055-5498
NSN 5990-01-186-8310
NSN 6220-00-426-1963
NSN 5930-01-150-5555
NSN 5930-01-424-9423
NSN 5975-00-246-4906
NSN 6620-01-266-8894
NSN 6150-00-862-1081
NSN 5999-01-207-1409
NSN 5935-00-246-5280
NSN 5925-01-133-4416
NSN 5945-01-341-7090