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 5998-00-507-0372
NSN 5910-00-824-0163
NSN 5910-01-584-0993
NSN 6610-01-010-3831
NSN 6650-01-499-4126
NSN 6610-01-209-5387
NSN 6240-00-737-2775
NSN 6150-01-443-3662
NSN 5965-00-732-3365
NSN 5998-00-261-8727
NSN 5915-00-876-6799
NSN 6110-01-053-0041