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 5998-01-439-6528
NSN 5835-01-654-4570
NSN 5965-01-406-6056
NSN 5930-01-099-8404
NSN 5930-01-048-1669
NSN 6135-01-366-9633
NSN 5925-01-489-1553
NSN 6620-01-348-1893
NSN 5915-00-734-4399
NSN 6110-01-222-4921
NSN 5975-01-444-3216
NSN 4140-00-608-5654