Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 540708 found under Bushing Sleeve by Xact Spec Industries Llc. The National Stock Number assigned to this part is 3120009121448, and the Federal Supply Class is 3120 Bearings Plain Unmounted. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 540708.