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 5915-01-206-5056
NSN 5855-01-519-7929
NSN 5950-01-401-5321
NSN 6150-00-883-3331
NSN 5965-01-335-6630
NSN 6130-01-639-8149
NSN 5965-00-088-1722
NSN 5960-01-031-1759
NSN 6220-01-351-3835
NSN 5905-01-153-2512
NSN 5998-01-199-5025
NSN 6135-01-597-7685