Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number S259I50A1001 found under Gage Thickness by Airbus Helicopters Inc. The National Stock Number assigned to this part is 5210016317669, and the Federal Supply Class is 5210 Measuring Tools Craftsmens. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like S259I50A1001.