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 6650-01-245-7642
NSN 5905-01-494-0347
NSN 6145-01-543-5439
NSN 5945-01-341-6783
NSN 5999-01-425-0645
NSN 5985-01-192-5509
NSN 6135-01-061-1862
NSN 5855-01-157-7186
NSN 6620-00-113-9145
NSN 5835-01-632-6627
NSN 6620-01-330-3917
NSN 6620-01-633-8443