Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 243-001-522 found under Motor Tachometer Generator by Avl Technologies Inc. The National Stock Number assigned to this part is 6105016170065, 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 243-001-522.