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 5835-01-580-0446
NSN 5960-01-579-1661
NSN 5999-01-255-3270
NSN 6620-00-643-1402
NSN 6220-01-364-3000
NSN 5920-00-781-3572
NSN 5998-01-249-7850
NSN 5925-01-525-2763
NSN 5985-00-177-7093
NSN 6685-00-599-8407
NSN 6130-01-088-6693
NSN 6150-01-172-8391