Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number MRS25-51R-1 found under Resistor Fixed Film by Farnell Newark Electronics Component. The National Stock Number assigned to this part is 5905014981551, 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 MRS25-51R-1.