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 5915-00-175-8657
NSN 5895-01-543-9776
NSN 6645-01-146-1548
NSN 5960-01-167-8796
NSN 5855-00-631-4565
NSN 6240-01-142-2963
NSN 6110-01-116-9440
NSN 5910-01-541-0156
NSN 6620-01-162-8001
NSN 6130-01-168-7888
NSN 6685-01-272-9452
NSN 6650-01-467-8818