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 5998-00-509-2847
NSN 6135-00-911-9321
NSN 6110-01-215-0598
NSN 5998-01-401-5396
NSN 5945-01-059-7074
NSN 6240-01-633-9357
NSN 5935-01-406-1807
NSN 6650-00-763-5304
NSN 7035-01-083-0282
NSN 5950-00-320-8873
NSN 5990-01-241-2479
NSN 2925-00-155-2100