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 6610-01-448-6059
NSN 2925-01-647-7225
NSN 5855-01-550-5219
NSN 5990-00-285-1948
NSN 5960-00-474-8254
NSN 6240-01-261-4958
NSN 5905-01-168-8603
NSN 5965-01-210-7784
NSN 6685-01-025-8229
NSN 5960-00-816-4659
NSN 5905-00-908-7271
NSN 5985-01-455-0321