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 5915-00-010-3011
NSN 6220-00-255-3367
NSN 5895-01-192-7724
NSN 6685-01-646-3337
NSN 5835-01-101-3687
NSN 5985-00-167-9819
NSN 5905-00-476-0215
NSN 6620-01-437-8193
NSN 6650-01-495-3744
NSN 5950-01-266-9487
NSN 4140-01-208-4829
NSN 6130-01-556-7433