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 6145-00-278-0697
NSN 6620-01-169-9470
NSN 4140-01-123-9149
NSN 5925-01-462-0068
NSN 6620-00-193-9503
NSN 5925-01-118-3866
NSN 5996-01-358-8671
NSN 5965-01-497-2723
NSN 6145-01-519-7571
NSN 5985-01-204-6293
NSN 5855-00-481-0019
NSN 5996-01-217-3670