Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 758 SO 599 found under Tip Cleaner by Technitool Inc. The National Stock Number assigned to this part is 3439015808920, and the Federal Supply Class is 3439 Miscellaneous Welding Soldering And Brazing Supplies And Accessories. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 758 SO 599.