Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 230-6409 found under Bolt Internal Wrenching by Wilwood Engineering. The National Stock Number assigned to this part is 5306015987050, and the Federal Supply Class is 5306 Bolts. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 230-6409.