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 5935-01-314-6417
NSN 5920-01-208-4981
NSN 6320-01-487-0336
NSN 5990-00-010-8186
NSN 2925-00-005-1618
NSN 6105-01-462-6111
NSN 5910-01-502-9149
NSN 6135-01-448-9474
NSN 5998-01-079-7023
NSN 5945-00-804-0121
NSN 6150-00-446-6223
NSN 6110-00-055-3691