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 5905-01-386-3180
NSN 6110-00-862-3097
NSN 6620-00-937-5931
NSN 6105-00-188-8796
NSN 6650-01-207-2905
NSN 5935-00-224-1735
NSN 4140-00-080-8740
NSN 6685-01-204-9005
NSN 5950-01-092-3598
NSN 6220-00-541-2841
NSN 5920-00-889-7826
NSN 4140-01-195-2070