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 6150-01-390-2131
NSN 5855-00-149-0766
NSN 6610-01-375-1527
NSN 5855-00-941-6412
NSN 5905-01-546-1723
NSN 5945-01-547-6646
NSN 5945-01-197-6058
NSN 5999-00-197-6915
NSN 6620-00-010-8190
NSN 6240-01-010-2534
NSN 5950-00-237-8609
NSN 5835-00-419-0575