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 6650-01-593-5993
NSN 6110-01-462-8995
NSN 7035-00-003-7518
NSN 5895-00-139-3053
NSN 5965-00-702-7257
NSN 6650-00-451-1084
NSN 6105-00-594-8642
NSN 5895-00-185-8627
NSN 5999-01-563-5496
NSN 6620-01-235-7992
NSN 6685-00-516-2173
NSN 6650-01-197-4585