Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SR4SSDF2G2 found under Bearing Ball Duplex by Northern Telecom Systems Corp. The National Stock Number assigned to this part is 3110007874546, 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 SR4SSDF2G2.