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 5990-00-956-9130
NSN 6645-00-121-7566
NSN 5945-00-964-2419
NSN 6620-01-114-6374
NSN 7035-00-076-4097
NSN 6240-01-152-7046
NSN 5915-01-576-8219
NSN 6105-01-206-4972
NSN 5975-01-607-6493
NSN 4140-00-279-0515
NSN 6685-01-582-2487
NSN 6650-01-185-7896