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 5960-01-025-2526
NSN 5905-01-510-9397
NSN 5960-01-512-0233
NSN 5915-01-142-7832
NSN 5965-01-193-5221
NSN 6150-00-004-1225
NSN 6220-01-488-3927
NSN 5975-01-092-8655
NSN 5905-01-104-3899
NSN 6135-00-050-7189
NSN 6110-01-400-4207
NSN 6320-00-456-0836