Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number QA1239 found under Tractor Full Tracked Low Speed by Komatsu America Corp. The National Stock Number assigned to this part is 2410013464601, and the Federal Supply Class is 2410 Tractor Full Tracked Low Speed. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like QA1239.