Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number Y400C2181 found under Bearing Sleeve by Teledyne Canada Bell Foundry. The National Stock Number assigned to this part is 3120003838557, 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 Y400C2181.