Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number ST8258-1 found under Screw Brush Retaine by Servo Products Co. The National Stock Number assigned to this part is 6105007322175, and the Federal Supply Class is 6105 Motors Electrical. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like ST8258-1.