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 6645-00-149-1100
NSN 5855-01-553-7476
NSN 5950-01-244-9357
NSN 5945-00-734-7263
NSN 6650-01-522-7462
NSN 6650-01-003-9355
NSN 6610-01-435-4387
NSN 5975-01-280-5371
NSN 6320-01-350-5570
NSN 7035-00-931-9415
NSN 6610-01-601-6249
NSN 6240-01-633-9357