Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number B10020-1 found under Turn Adapter Female by Chief Of Engineers. The National Stock Number assigned to this part is 5680000895928, and the Federal Supply Class is 5680 Miscellaneous Construction Materials. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like B10020-1.