Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 6860658 found under Body Assy Engine Re by Allison Transmission Holdings Inc. The National Stock Number assigned to this part is 4820008580705, and the Federal Supply Class is 4820 Valves Nonpowered. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 6860658.