Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 686-1006 found under Shaft Shouldered by Tvh Parts Co. The National Stock Number assigned to this part is 3040003749419, and the Federal Supply Class is 3040 Miscellaneous Power Transmission Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 686-1006.