Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number VS420R found under Valve Pneumatic Tire by Eaton Aerospace Ltd. The National Stock Number assigned to this part is 2640000520868, and the Federal Supply Class is 2640 Tire Rebuilding And Tire And Tube Repair Materials. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like VS420R.