Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number N-11398 PIECE 7 6IN found under Bushing Sleeve by Walworth Co. The National Stock Number assigned to this part is 3120012537177, 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 N-11398 PIECE 7 6IN.