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 5895-01-153-1873
NSN 7035-00-679-9027
NSN 5945-01-502-7415
NSN 5895-01-438-1271
NSN 5905-01-384-9900
NSN 5895-00-144-8162
NSN 6135-01-226-4071
NSN 7035-00-631-3782
NSN 5996-01-426-8531
NSN 5998-01-264-9261
NSN 6135-01-416-3181
NSN 6110-01-374-6640