Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 133690-1 found under Guard Segment Ring Electrical Co by Rotating Precision Mechanisms Inc. The National Stock Number assigned to this part is 5977016519460, and the Federal Supply Class is 5977 Electrical Contact Brushes And Electrodes. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 133690-1.