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 5920-01-135-7546
NSN 5975-01-231-9669
NSN 5999-01-417-2834
NSN 5965-00-549-0220
NSN 6145-00-212-0422
NSN 5920-01-023-0040
NSN 5985-01-024-8403
NSN 6650-01-644-3532
NSN 4140-00-163-6200
NSN 6610-01-218-7668
NSN 6220-00-424-6776
NSN 5835-01-044-2628