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 5925-00-283-1410
NSN 6620-01-356-2374
NSN 6685-01-309-3264
NSN 5998-01-652-0269
NSN 5910-00-414-3416
NSN 5990-00-161-2797
NSN 6685-01-633-2592
NSN 5835-00-092-1136
NSN 6650-01-082-4867
NSN 5965-01-551-1900
NSN 6220-01-315-3347
NSN 5920-01-265-5489