1/2" npt
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 5910-00-136-7092
NSN 5935-01-123-9552
NSN 5920-01-139-5137
NSN 5935-00-201-9787
NSN 2925-01-633-4048
NSN 5945-01-213-8166
NSN 6220-01-258-1283
NSN 5998-00-227-8504
NSN 5910-01-630-9791
NSN 4140-01-125-2906
NSN 4140-00-547-8918
NSN 5985-01-570-6090