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 6150-00-803-8893
NSN 5996-00-686-8818
NSN 6110-01-063-4881
NSN 6150-00-270-1001
NSN 5990-01-178-6307
NSN 5960-00-104-5955
NSN 6320-00-164-4087
NSN 6240-01-500-6260
NSN 5998-00-784-4014
NSN 5925-00-463-4006
NSN 5920-00-168-4483
NSN 6645-01-023-8724