Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 04-21157 found under Connector Cable by Cummins Power Generation Inc. The National Stock Number assigned to this part is 2990015967015, and the Federal Supply Class is 2990 Miscellaneous Engine Accessories Nonaircraft. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 04-21157.