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 5965-00-289-6280
NSN 5915-01-535-1738
NSN 6110-00-760-5499
NSN 6610-00-126-7425
NSN 4140-01-265-8669
NSN 6135-01-089-4888
NSN 7035-01-056-0047
NSN 6110-01-426-9713
NSN 6130-00-227-7798
NSN 5985-01-310-8444
NSN 5960-01-151-4518
NSN 4140-01-232-2869