Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number BACB30FD12-50Y found under Bolt Shoulder by J M Precision Inc. The National Stock Number assigned to this part is 5306012809356, 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 BACB30FD12-50Y.