Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number PFS1.75-500CPK found under Resistor Fixed Composition by Power Film Systems Incorporated. The National Stock Number assigned to this part is 5905000514631, 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 PFS1.75-500CPK.