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 5975-01-297-3455
NSN 6645-01-322-8897
NSN 6135-01-461-2915
NSN 5835-01-502-9228
NSN 5920-01-360-8310
NSN 5935-00-893-0278
NSN 5945-01-473-1821
NSN 5920-01-252-2353
NSN 5998-01-199-7049
NSN 7035-01-106-3476
NSN 5999-01-345-2715
NSN 5965-01-198-3256