Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 173 263 found under Motor Alternating C by Miller Electric Mfg Co. The National Stock Number assigned to this part is 6105015653499, and the Federal Supply Class is 6105 Motors Electrical. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 173 263.