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 5930-00-119-1278
NSN 6240-01-370-2518
NSN 5950-01-411-5950
NSN 5855-00-427-7848
NSN 5945-01-141-8833
NSN 5915-01-377-7602
NSN 5905-01-526-6663
NSN 5895-01-616-4732
NSN 5835-01-575-5053
NSN 2925-01-139-7106
NSN 6645-00-003-0337
NSN 6145-01-546-8559