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 6145-01-144-1063
NSN 5990-01-237-9044
NSN 7035-00-481-5182
NSN 7035-01-115-8996
NSN 5835-01-189-6095
NSN 7035-00-140-3070
NSN 5998-01-449-1075
NSN 6105-01-132-9995
NSN 5925-00-882-7510
NSN 6620-00-472-5146
NSN 5965-01-222-0166
NSN 5930-01-220-8519