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 5965-01-508-2537
NSN 2925-00-236-9986
NSN 6240-01-062-4517
NSN 5905-01-262-9684
NSN 5910-01-173-1094
NSN 5965-01-462-2291
NSN 6620-01-605-1154
NSN 5945-01-378-7045
NSN 6145-01-089-8616
NSN 5910-00-838-4957
NSN 5910-00-707-4900
NSN 5960-00-994-0783