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 6685-01-041-3882
NSN 5999-01-413-4939
NSN 5999-00-146-3758
NSN 5930-01-149-9882
NSN 5950-01-474-5576
NSN 5905-01-011-3056
NSN 5895-01-443-4733
NSN 5990-00-985-1334
NSN 5945-00-203-4451
NSN 6620-01-512-2016
NSN 5990-00-090-3829
NSN 4140-00-446-1024