Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number WL-20 found under Lever Manual Control by Fahringer T L Co Inc. The National Stock Number assigned to this part is 3040012131491, and the Federal Supply Class is 3040 Miscellaneous Power Transmission Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like WL-20.