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 5895-00-171-0412
NSN 4140-01-059-8730
NSN 4140-01-350-4725
NSN 6685-01-607-3574
NSN 5975-00-411-4186
NSN 6130-01-146-9715
NSN 6135-01-425-5553
NSN 6610-01-100-3662
NSN 5915-01-341-2321
NSN 6130-00-344-8161
NSN 5945-01-643-6030
NSN 5960-01-036-6320