Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 680197 found under Guide Valve Stem by Honeywell Aerospace. The National Stock Number assigned to this part is 4820013164892, 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 680197.