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 5996-01-446-0568
NSN 5998-00-446-4109
NSN 5975-01-322-7586
NSN 5965-01-557-7793
NSN 5960-00-401-0794
NSN 5835-01-263-1293
NSN 6320-00-194-4252
NSN 6110-00-596-9124
NSN 6220-00-472-4166
NSN 5965-00-513-1352
NSN 6240-01-115-8487
NSN 5925-01-147-6954