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 6220-01-025-6140
NSN 6220-00-812-0515
NSN 6620-01-408-4464
NSN 5950-00-924-5313
NSN 5965-01-408-9551
NSN 2925-00-549-6759
NSN 5855-00-256-5562
NSN 5999-01-634-0576
NSN 5960-01-100-7381
NSN 5999-00-224-6026
NSN 6150-00-856-3789
NSN 5960-00-237-0125