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 2925-01-277-0873
NSN 6110-01-343-9107
NSN 2925-00-859-8579
NSN 5990-01-462-6961
NSN 6645-01-234-2856
NSN 5920-01-146-9154
NSN 5990-01-426-7350
NSN 5999-01-242-9350
NSN 6610-01-376-3993
NSN 5895-00-787-0239
NSN 5915-01-220-1641
NSN 5910-01-386-5169