Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number PM4-3R57H found under Resistor Fixed Wire Wound Nonind by Precision Resistor Co Inc. The National Stock Number assigned to this part is 5905002796603, 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 PM4-3R57H.