Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 75A326273-1003 found under Heat Shield Bottom by British Aerospace Inc. The National Stock Number assigned to this part is 1680011520802, 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 75A326273-1003.