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 6220-01-175-5518
NSN 5998-01-553-3956
NSN 7035-01-049-6776
NSN 5950-01-307-2217
NSN 4140-01-419-0198
NSN 5910-01-265-3942
NSN 5945-01-444-0971
NSN 5950-01-518-0453
NSN 5990-01-365-6016
NSN 5835-00-233-6327
NSN 6150-00-522-4909
NSN 6150-01-323-5232