Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number MC21498 found under Case Solenoid Aircr by Eaton Aerospace Ltd. The National Stock Number assigned to this part is 1680015437445, and the Federal Supply Class is 1680 Miscellaneous Aircraft Accessories And Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like MC21498.