Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number R3190-135 found under Bearing Ball Annular by Bogue Systems Inc. The National Stock Number assigned to this part is 3110000521601, 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 R3190-135.