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 4140-01-067-2587
NSN 5910-00-313-7206
NSN 5925-01-276-0456
NSN 4140-00-567-9291
NSN 6620-01-177-1772
NSN 4140-01-381-0099
NSN 5996-01-444-7283
NSN 5925-01-180-7065
NSN 5930-00-823-0718
NSN 5920-01-141-6885
NSN 6240-00-156-1607
NSN 6320-01-108-5933