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 5990-00-099-0822
NSN 6220-01-301-3662
NSN 6610-01-309-1930
NSN 7035-00-215-3272
NSN 5930-00-268-0323
NSN 5985-01-556-0697
NSN 6105-00-868-2036
NSN 6620-00-443-7587
NSN 5990-00-067-6791
NSN 6320-00-937-5625
NSN 6110-01-470-8127
NSN 5920-01-127-3769