Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 931M10X90-8.8 found under Bolt Machine by Zelenda Machine And Tools Corp. The National Stock Number assigned to this part is 5306011852030, and the Federal Supply Class is 5306 Bolts. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 931M10X90-8.8.