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 5935-01-634-0668
NSN 2925-01-004-5627
NSN 5895-01-603-0265
NSN 6610-00-149-1534
NSN 5910-00-189-7516
NSN 5998-01-546-0831
NSN 6135-01-136-7087
NSN 6685-01-417-6071
NSN 5895-00-090-3714
NSN 6150-01-396-7715
NSN 6220-01-487-3904
NSN 5855-01-598-5136