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 5910-01-616-8087
NSN 5990-01-034-0516
NSN 5935-01-043-6952
NSN 5960-01-507-9112
NSN 5960-01-199-6953
NSN 5996-00-498-0305
NSN 5999-01-266-3097
NSN 6220-00-225-8345
NSN 5990-01-168-6797
NSN 6685-00-506-0090
NSN 6610-01-380-6374
NSN 5920-01-153-2690