Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 9442.20 found under Tool Camshaft by Wartsila Diesel Inc. The National Stock Number assigned to this part is 5120014473944, 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 9442.20.