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 5945-01-067-7955
NSN 5998-01-516-7544
NSN 6110-00-209-7241
NSN 5950-00-902-1144
NSN 5930-00-491-7546
NSN 5950-00-004-5000
NSN 2925-01-276-6100
NSN 4140-01-305-6934
NSN 5960-00-326-9713
NSN 6130-01-660-6357
NSN 6240-01-457-0926
NSN 6685-00-808-1402