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 5990-00-400-4794
NSN 5930-01-003-0442
NSN 5975-00-435-0350
NSN 6240-01-111-5623
NSN 7035-01-379-3795
NSN 6645-01-279-0657
NSN 6105-01-432-2249
NSN 4140-01-126-5989
NSN 5945-01-420-4030
NSN 6610-01-446-7635
NSN 5945-01-500-1904
NSN 5990-01-514-8708