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 5996-01-609-8502
NSN 5855-01-259-0995
NSN 5855-00-472-2055
NSN 5895-01-026-9002
NSN 5915-00-432-0645
NSN 5925-01-596-2796
NSN 5910-01-058-4282
NSN 5990-01-218-1821
NSN 5910-00-877-7750
NSN 6110-01-090-0417
NSN 6650-00-003-5413
NSN 5915-00-341-6505