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 6145-00-378-3836
NSN 4140-01-350-3277
NSN 6240-00-928-7181
NSN 5996-01-241-1843
NSN 5930-01-659-7973
NSN 6105-01-344-7302
NSN 5920-00-269-6178
NSN 6145-00-916-9574
NSN 6685-00-134-2993
NSN 5910-01-085-4885
NSN 5835-01-512-4834
NSN 6145-01-105-5335