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 5945-01-210-3915
NSN 5999-00-272-2175
NSN 6150-00-328-1055
NSN 5930-00-930-9483
NSN 6130-00-267-9970
NSN 5915-01-415-7240
NSN 6145-01-519-3281
NSN 5915-00-156-2083
NSN 5925-01-634-0664
NSN 2925-01-259-7092
NSN 6650-01-487-9454
NSN 6145-01-303-5718