Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 191-274 found under Bit Wire Wrapping Tool by Stanley Supply And Services Inc. The National Stock Number assigned to this part is 5130011046629, and the Federal Supply Class is 5130 Hand Tools Power Driven. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 191-274.