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 5835-01-092-6759
NSN 5855-00-491-7079
NSN 5998-01-556-1893
NSN 6220-00-403-9021
NSN 6135-01-275-1363
NSN 6145-00-317-2087
NSN 5960-00-151-7576
NSN 6320-01-519-8767
NSN 5910-01-164-4607
NSN 4140-01-080-5114
NSN 5965-01-327-7531
NSN 5905-01-438-6439