Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number B-3277 found under Boot Dust Seal Cont by Kirkhill Ta Co. The National Stock Number assigned to this part is 1560006136581, and the Federal Supply Class is 1560 Airframe Structural Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like B-3277.