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 5920-00-434-0981
NSN 4140-01-634-0330
NSN 5998-00-704-4404
NSN 5985-00-993-0403
NSN 5965-01-026-9865
NSN 5965-01-241-9865
NSN 5935-01-591-1033
NSN 5975-01-033-6578
NSN 6135-01-121-3225
NSN 5945-01-519-2733
NSN 2925-01-421-9665
NSN 2925-00-705-5180