Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number AFB1611B found under Bushing Sleeve by Coltec Industries Inc. The National Stock Number assigned to this part is 3120006620043, 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 AFB1611B.