An electronic subassembly designed to be plugged into one or more basic pieces of test equipment to extend the capabilities of the basic instrument. the basic instrument cannot function without one or more plug-in units (as required) in position.
Classification: Parts and accessories of articles of schedule b subheading 9030.39
NSN 5950-01-288-1845
NSN 6135-01-503-1688
NSN 5930-01-317-2209
NSN 5910-01-142-0037
NSN 4140-01-054-3553
NSN 5905-01-279-0189
NSN 7035-01-271-1643
NSN
NSN 6620-01-251-6844
NSN 6240-01-179-4547
NSN 6620-01-528-6076
NSN 5990-00-738-1928