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 5925-01-504-7731
NSN 6220-01-176-3686
NSN 6240-00-248-6517
NSN 5910-00-452-9808
NSN 5930-01-271-6703
NSN 5965-00-147-3070
NSN 6320-01-571-4530
NSN 6650-01-338-9998
NSN 5925-01-330-0491
NSN 5990-00-189-6649
NSN 6110-01-516-8894
NSN 6650-00-920-0332