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 6150-01-621-6547
NSN 6220-01-507-2499
NSN 4140-01-506-8547
NSN 6110-01-103-3142
NSN 5975-00-935-5946
NSN 6320-00-456-0836
NSN 5895-01-069-0003
NSN 6110-01-085-6052
NSN 5835-01-070-3745
NSN 5930-00-362-6737
NSN 7035-01-350-0824
NSN 5855-01-179-2702