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 6610-01-631-4355
NSN 5915-01-095-7916
NSN 5985-00-221-1563
NSN 5975-00-877-2567
NSN 5905-00-332-0806
NSN 5945-01-131-1759
NSN 7035-01-302-5359
NSN 6110-00-964-3514
NSN 5998-01-632-4286
NSN 5905-01-566-8378
NSN 6320-01-381-7023
NSN 5930-00-916-1418