Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 125329U4 found under Adapter And Shaft A by Howe Machine And Tool Corp. The National Stock Number assigned to this part is 1680015874763, and the Federal Supply Class is 1680 Miscellaneous Aircraft Accessories And Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 125329U4.