Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 52W1186-3 found under Bearing Sleeve by Bliss E W Co. The National Stock Number assigned to this part is 3120002803210, 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 52W1186-3.