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 6240-00-068-0249
NSN 5996-00-794-2546
NSN 5835-00-471-2660
NSN 5855-00-189-6066
NSN 6145-01-513-2569
NSN 5950-00-263-6586
NSN 5920-01-281-7354
NSN 5920-00-539-6989
NSN 5915-00-719-6455
NSN 5950-01-374-6933
NSN 2925-00-757-7028
NSN 6645-01-168-6348