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 5998-01-541-8460
NSN 7035-01-028-4966
NSN 5960-01-250-5502
NSN 6145-01-201-2320
NSN 6645-00-200-2322
NSN 5935-01-395-1931
NSN 5920-01-422-9616
NSN 5960-00-983-7232
NSN 5975-01-486-2520
NSN 5960-01-194-4506
NSN 5935-00-629-5937
NSN 5835-01-507-0731