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 6220-00-775-0214
NSN 5905-01-472-2366
NSN 5895-01-385-5502
NSN 5835-01-227-2318
NSN 6620-00-151-5363
NSN 6320-01-081-7748
NSN 5945-01-469-9919
NSN 6320-00-646-3311
NSN 5930-00-217-2647
NSN 4140-01-580-2319
NSN 5960-01-273-2794
NSN 6320-00-908-6841