Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number RC21U22KJ found under Resistor Fixed Film by Union Technique Electricite. The National Stock Number assigned to this part is 5905012684287, 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 RC21U22KJ.