Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 33RC127 found under Cap Pneumatic Valve by Mack Trucks Inc. The National Stock Number assigned to this part is 2640000603550, 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 33RC127.