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 6220-01-432-9617
NSN 2925-01-399-2765
NSN 5935-00-343-7614
NSN 7035-00-541-8516
NSN 5950-01-432-2038
NSN 5950-01-579-4055
NSN 5975-01-411-5626
NSN 5985-01-218-5643
NSN 7035-01-146-7096
NSN 5998-00-225-8522
NSN 5930-00-491-7428
NSN 6135-01-394-4160