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 4140-01-554-9173
NSN 5996-01-309-2260
NSN 5985-01-223-0840
NSN 6610-01-571-3422
NSN 6650-00-966-0973
NSN 5945-00-926-6295
NSN 2925-01-311-0446
NSN 6645-00-580-9605
NSN 6320-01-108-5933
NSN 5945-01-301-2873
NSN 5910-01-232-9766
NSN 5920-00-521-8331