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 5905-01-446-4990
NSN 6220-01-497-1277
NSN 6650-01-248-2591
NSN 5945-01-104-6281
NSN 6620-01-186-4374
NSN 5945-00-167-1529
NSN 5835-00-233-6327
NSN 6685-01-508-9059
NSN 5915-01-318-0720
NSN 5855-01-409-1792
NSN 6610-01-179-4922
NSN 6645-01-046-4880