Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SAR31-R050HR found under Resistor Fixed Wire Wound Induct by Cal R Inc. The National Stock Number assigned to this part is 5905013146318, 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 SAR31-R050HR.