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 6130-00-297-5793
NSN 5998-01-483-1590
NSN 5925-01-429-0162
NSN 6220-00-647-3096
NSN 5920-00-536-1842
NSN 6150-00-879-8536
NSN 5945-00-233-5804
NSN 5990-00-822-9269
NSN 6220-01-123-9290
NSN 5930-01-095-0276
NSN 5996-01-104-4161
NSN 6110-01-422-0873