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 5945-01-473-3447
NSN 6150-01-479-4023
NSN 6105-01-612-9379
NSN 6220-01-398-0614
NSN 6145-01-502-9150
NSN 5935-00-097-1136
NSN 5835-01-143-6841
NSN 5935-01-654-7078
NSN 5999-01-295-7228
NSN 6135-01-591-4181
NSN 5975-00-669-7668
NSN 5905-01-085-4963