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 5925-01-263-1968
NSN 5855-01-422-5413
NSN 5999-01-586-9282
NSN 5915-00-661-2223
NSN 5935-01-146-5537
NSN 5999-01-136-0144
NSN 5930-01-374-7641
NSN 5945-01-528-1776
NSN 6150-01-441-8536
NSN 6150-01-025-9766
NSN 6145-01-464-1324
NSN 5950-00-170-1864