Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 4491153 PIECE 52 found under Sheave Roller by Scandia Manufacturing Coinc. The National Stock Number assigned to this part is 3110015380198, 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 4491153 PIECE 52.