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 5998-01-347-1742
NSN 6685-01-411-6623
NSN 5895-00-918-1299
NSN 6105-01-191-6030
NSN 5950-01-075-9046
NSN 5920-01-223-7375
NSN 5996-00-829-0661
NSN 6685-00-753-7429
NSN 5945-01-419-9013
NSN 5920-01-210-5685
NSN 6220-01-177-5694
NSN 5910-00-078-9545