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 2925-01-446-0525
NSN 5935-01-634-0668
NSN 5990-01-555-6616
NSN 5996-01-467-9391
NSN 6135-00-243-8330
NSN 2925-00-246-3077
NSN 5975-00-292-3250
NSN 6610-01-500-0863
NSN 6220-00-770-7658
NSN 4140-01-208-8964
NSN 5905-01-351-0685
NSN 6650-01-196-4667