Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number MC3670BA found under Bracketvehicular Components by Milton Manufacturing Inc. The National Stock Number assigned to this part is 2590016889460, and the Federal Supply Class is 2590 Miscellaneous Vehicular Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like MC3670BA.