Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number HS5021-0700 found under Mounting Pad Electrical Electron by Mcdonnell Douglas Helicopter. The National Stock Number assigned to this part is 5999003915395, and the Federal Supply Class is 5999 Miscellaneous Electrical And Electronic Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like HS5021-0700.