5220-00-420-5582 (900921-3)
5220-00-420-5582 is equivalent to manufacture part number 900921-3. It is a inspecti gage block and is classified under Federal Supply Class 5220 (5220 - Inspection Gages and Precision Tools), stocked for defense, aerospace, MRO, and industrial maintenance applications. This item is cataloged in the NATO supply system under 5220 - Inspection Gages and Precision Tools and is available through NSN-PARTS for U.S. government MRO, and commercial procurement.