Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number MIL-B-6812 found under Bolt Shoulder by National Aerospace Standards. The National Stock Number assigned to this part is 5306014088478, 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 MIL-B-6812.