Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number AU74D found under Cap Ignition Distribution by Amphenol Sv Microwave. The National Stock Number assigned to this part is 2920005162720, and the Federal Supply Class is 2920 Engine Electrical System Components Nonaircraft. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like AU74D.