As modified by fscm 26512 source controlling ref 1128scsea801-5
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 6220-01-462-2613
NSN 6320-01-097-5347
NSN 6620-00-984-7252
NSN 6240-01-152-7046
NSN 5835-00-426-2402
NSN 6320-01-253-9585
NSN 5855-00-014-5008
NSN 5950-01-367-1870
NSN 5895-01-443-3463
NSN 6650-01-309-9152
NSN 5910-00-267-9509
NSN 4140-01-211-6474