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 6610-01-425-6960
NSN 6240-00-483-9373
NSN 6620-01-412-0938
NSN 5999-00-917-3454
NSN 5925-01-337-2001
NSN 5965-01-441-8826
NSN 5855-00-466-2309
NSN 5960-01-467-7516
NSN 6320-01-476-7702
NSN 5960-01-075-7732
NSN 5965-00-400-6228
NSN 5985-01-188-8573