Two or more different types of items, having a common mounting or mounted on each other, which together form a portion of a calibrator, but which in itself is not a complete functioning item and cannot be assigned a more definite item name.
Classification: Parts and accessories of articles of schedule b subheading 9030.39
NSN 5960-01-068-4003
NSN 6240-01-322-9345
NSN 5835-01-566-5462
NSN 5990-00-188-6111
NSN 6145-00-336-1986
NSN 6650-01-124-1902
NSN 5930-01-407-1089
NSN 5935-01-461-8096
NSN 5996-01-200-1582
NSN 5960-01-499-7172
NSN 5990-00-212-4316
NSN 5945-01-018-9295