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 5910-00-204-9571
NSN 6145-01-386-9025
NSN 5915-01-290-9833
NSN 5855-00-079-2370
NSN 5925-01-270-0550
NSN 7035-00-213-6413
NSN 6135-00-078-9931
NSN 5915-00-372-4522
NSN 4140-00-103-0065
NSN 6135-01-616-5983
NSN 5990-01-605-9026
NSN 4140-01-278-2105