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 6150-00-886-1212
NSN 5975-01-240-7888
NSN 5945-01-368-3736
NSN 4140-01-197-0406
NSN 5915-01-271-5516
NSN 5975-00-503-9190
NSN 6645-01-063-5383
NSN 6135-00-767-0331
NSN 5965-00-403-5453
NSN 5910-01-227-5744
NSN 5965-01-224-9756
NSN 2925-01-143-4229