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 2925-01-364-7926
NSN 6240-01-103-1198
NSN 6130-01-087-6082
NSN 4140-01-519-4604
NSN 5965-01-129-1968
NSN 5920-01-051-0090
NSN 5895-00-708-6443
NSN 5925-01-224-4898
NSN 5998-01-476-8400
NSN 4140-01-630-4512
NSN 5910-01-440-9117
NSN 6220-01-132-3639