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 6130-01-043-4066
NSN 2925-01-628-7580
NSN 5996-01-418-8485
NSN 6110-00-982-2838
NSN 5920-01-495-4871
NSN 5915-01-243-3583
NSN 6110-01-085-2899
NSN 6220-01-108-3857
NSN 6645-00-079-1430
NSN 6130-01-467-9465
NSN 5998-00-325-3463
NSN 5999-01-437-4901