Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 7890509-051 found under Resistor Fixed Composition by Delco Mfg Co Inc. The National Stock Number assigned to this part is 5905002286088, and the Federal Supply Class is 5905 Resistors. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 7890509-051.