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 5990-01-607-3528
NSN 5925-01-065-6374
NSN 7035-01-216-4806
NSN 6240-00-816-6749
NSN 6135-00-221-4720
NSN 5915-01-410-7822
NSN 6620-01-169-2406
NSN 5945-00-962-8227
NSN 6240-00-722-9558
NSN 5910-00-728-1422
NSN 6650-01-214-8856
NSN 5990-01-419-0661