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 6240-01-476-7357
NSN 6610-01-335-3185
NSN 5930-01-424-7209
NSN 5925-01-385-7855
NSN 7035-01-141-8076
NSN 6130-00-836-2566
NSN 6240-00-197-6819
NSN 5835-01-369-7837
NSN 6145-01-498-0113
NSN 6130-01-487-3637
NSN 5996-01-023-0537
NSN 5975-01-392-8084