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 5895-00-102-8738
NSN 5930-01-371-2910
NSN 6220-00-541-8515
NSN 6620-00-118-1983
NSN 6685-01-142-1969
NSN 5915-01-624-2182
NSN 7035-00-553-6951
NSN 5895-00-486-0191
NSN 5960-00-869-1969
NSN 7035-01-383-6549
NSN 6610-01-146-8061
NSN 6150-01-293-2636