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 6645-01-510-1984
NSN 6145-00-941-6461
NSN 5855-01-120-7831
NSN 6105-00-189-1849
NSN 5895-00-483-8629
NSN 6130-01-425-7899
NSN 6145-01-421-4257
NSN 5895-00-723-2059
NSN 5945-00-887-1902
NSN 7035-01-503-1385
NSN 5835-01-414-3258
NSN 7035-00-007-7023