Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number B453212 found under Sleeve Special by Rolls Royce Corp. The National Stock Number assigned to this part is 3110004229177, and the Federal Supply Class is 3110 Bearings Antifriction Unmounted. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like B453212.