Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 469 508 21 found under Resistor Thermal by Cmc Lectronique Inc. The National Stock Number assigned to this part is 5905004163519, 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 469 508 21.