Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number ST9M593-8 found under Block Assembly Coil by Pcc Structurals Groton. The National Stock Number assigned to this part is 1680014804995, and the Federal Supply Class is 1680 Miscellaneous Aircraft Accessories And Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like ST9M593-8.