Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 23-1643 found under Support Structural Component Air by Scott Craft Co. The National Stock Number assigned to this part is 1560006101350, 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 23-1643.