Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number A10006 found under Compressor Valve Spring by Tti Testron Inc. The National Stock Number assigned to this part is 5120013043877, and the Federal Supply Class is 5120 Hand Tools Nonedged Nonpowered. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like A10006.