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 6610-01-391-9062
NSN 5965-00-092-1479
NSN 6150-01-071-0219
NSN 5998-01-510-4612
NSN 6220-01-128-0087
NSN 6240-01-377-5503
NSN 5996-00-974-3564
NSN 6150-01-094-7298
NSN 5905-00-665-9765
NSN 5975-01-387-1300
NSN 5905-01-009-0932
NSN 6145-01-055-6976