Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 277397124 found under Shaft Shouldered by Z Corporation. The National Stock Number assigned to this part is 3040222692003, 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 277397124.