Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 05-4487 found under Filter Assembly Electrical by Herley Industries Inc. The National Stock Number assigned to this part is 5915013501103, and the Federal Supply Class is 5915 Filters And Networks. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 05-4487.