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 5835-01-027-1828
NSN 6240-00-498-7669
NSN 5905-01-189-5980
NSN 5999-01-513-7903
NSN 2925-00-441-5873
NSN 4140-01-477-4566
NSN 5915-01-010-1365
NSN 6145-01-133-4008
NSN 6150-01-073-9506
NSN 6650-01-384-0529
NSN 6135-00-161-0746
NSN 5905-01-388-5255