Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number W243 09 7 found under Bushing Sleeve by Rolls Royce Marine As Avd Norwinch. The National Stock Number assigned to this part is 3120251502712, 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 W243 09 7.