Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 55-10 found under Adjuster Slack Brake by Dexter Axle Co Inc Div Of Philip. The National Stock Number assigned to this part is 2530014180008, and the Federal Supply Class is 2530 Vehicular Brake Steering Axle Wheel And Track Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 55-10.