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 5855-01-423-0817
NSN 5975-01-411-7106
NSN 5985-01-046-5184
NSN 6220-01-086-1171
NSN 6320-01-160-8578
NSN 6145-00-170-6872
NSN 6220-01-021-5096
NSN 5975-01-602-6598
NSN 5999-01-388-1989
NSN 6645-01-633-0303
NSN 6110-00-315-9894
NSN 5999-01-025-6686