Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number B288923 found under Support Pitch Shutter by British Aerospace Inc. The National Stock Number assigned to this part is 1680004920719, 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 B288923.