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 5965-01-159-2694
NSN 6320-01-359-3921
NSN 5999-01-398-3547
NSN 5915-00-928-0616
NSN 5960-01-442-7950
NSN 5905-01-024-8471
NSN 5975-01-533-3893
NSN 5920-01-367-5791
NSN 6240-01-584-9648
NSN 5920-00-072-1492
NSN 5935-01-512-9833
NSN 6145-00-752-2562