Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number R431004948 found under Valve Relay Air Pressure by Aventics Ltd. The National Stock Number assigned to this part is 2530013598175, 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 R431004948.