Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 4004C10-11-12 found under Roller Bearing Element by Hamilton Sundstrand Corporation. The National Stock Number assigned to this part is 3110010340011, 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 4004C10-11-12.