6695-01-421-1530 (81-0230-50PPM)
6695-01-421-1530 is equivalent to manufacture part number 81-0230-50PPM. It is a primary referenc calibration set and is classified under Federal Supply Class 6695 (6695 - Combination and Miscellaneous Instruments), stocked for defense, aerospace, MRO, and industrial maintenance applications. This item is cataloged in the NATO supply system under 6695 - Combination and Miscellaneous Instruments and is available through NSN-PARTS for U.S. government MRO, and commercial procurement.