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 5998-01-360-6038
NSN 5945-01-163-5198
NSN 5990-00-378-1449
NSN 6220-01-122-2543
NSN 6220-01-348-0677
NSN 5835-01-432-8801
NSN 6240-01-224-0052
NSN 5985-01-194-2462
NSN 5950-01-025-9757
NSN 6135-00-078-9931
NSN 6610-01-144-8401
NSN 5950-01-539-5378