Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 3-140-450-04 found under Tube And Support As by Honeywell Aerospace. The National Stock Number assigned to this part is 2835010743448, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 3-140-450-04.