Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 4B303 found under Stripper Wire Hand by Jensen Tools Inc. The National Stock Number assigned to this part is 5110004722328, and the Federal Supply Class is 5110 Hand Tools Edged Nonpowered. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 4B303.