Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 217-14221 found under Indicator Torquemeter by Mcgraw Edison Co. The National Stock Number assigned to this part is 6620012480339, and the Federal Supply Class is 6620 Engine Instruments. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 217-14221.