Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number PFS12-500AB-PORM2PCT found under Resistor Fixed Film by Power Film Systems Incorporated. The National Stock Number assigned to this part is 5905000279892, 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 PFS12-500AB-PORM2PCT.