Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SR144S4DB7-011 found under Bearing Ball Duplex by Barden Corporation Uk Ltd. The National Stock Number assigned to this part is 3110001164657, 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 SR144S4DB7-011.