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 5855-01-184-8089
NSN 5960-01-359-4257
NSN 5965-00-493-6008
NSN 5950-00-437-6437
NSN 6105-00-782-1857
NSN 5998-01-599-4010
NSN 6135-00-209-6918
NSN 6620-00-262-3113
NSN 6685-00-812-0145
NSN 5950-01-076-4570
NSN 5930-00-179-1214
NSN 5855-01-167-2162