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 6130-01-227-2577
NSN 5930-00-269-4996
NSN 5925-01-515-3351
NSN 6685-01-501-4901
NSN 5965-00-622-7025
NSN 7035-01-192-2659
NSN 5945-01-403-2800
NSN 5935-01-513-8861
NSN 5920-01-467-5568
NSN 5975-00-631-5817
NSN 5935-00-157-0743
NSN 6145-01-462-4489