Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 5111 found under Shaft Straight by Cleveland Trencher Co Inc. The National Stock Number assigned to this part is 3040003742988, 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 5111.