Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number R820-495ROC found under Resistor Fixed Wire by Shallcross Inc. The National Stock Number assigned to this part is 5905012679255, 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 R820-495ROC.