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 6145-01-503-8534
NSN 6650-00-671-5106
NSN 5999-00-033-5711
NSN 6110-01-146-9704
NSN 5999-00-051-5578
NSN 5965-01-408-6218
NSN 5945-00-540-1052
NSN 2925-01-091-4734
NSN 5998-00-983-5220
NSN 5975-01-163-6562
NSN 6620-00-553-8988
NSN 6145-01-477-4320