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 5915-01-269-6903
NSN 5965-00-185-9687
NSN 5975-01-023-8773
NSN 5910-01-495-0619
NSN 6610-00-263-3076
NSN 6650-01-569-0004
NSN 5990-01-142-0538
NSN 5920-00-529-0618
NSN 6240-01-519-8781
NSN 5935-01-487-3783
NSN 6150-01-524-2546
NSN 5910-01-647-3080