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 5910-00-221-2889
NSN 4140-01-643-3391
NSN 5910-01-512-2300
NSN 6320-00-216-8779
NSN 5835-00-140-8646
NSN 6130-00-007-3787
NSN 5915-00-518-4656
NSN 7035-01-087-7727
NSN 6620-00-635-7347
NSN 5960-01-632-6576
NSN 6145-00-173-5177
NSN 7035-01-256-9598