Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number ECB-1 SN. 1G479788 found under Installation Kit Shop Equipment by Donaldson Co Inc. The National Stock Number assigned to this part is 4940014896066, 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 ECB-1 SN. 1G479788.