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 6220-01-421-3996
NSN 6105-00-869-0782
NSN 5998-01-243-6653
NSN 5965-01-399-8454
NSN 5910-01-359-4071
NSN 6685-00-121-8650
NSN 5925-01-253-2765
NSN 5855-01-020-3777
NSN 6220-00-423-6878
NSN 6650-01-599-0019
NSN 6240-01-082-5552
NSN 6150-01-317-5517