Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number EF000022-001 found under Filter High Pass by L 3 Communications Integrated. The National Stock Number assigned to this part is 5915013809472, 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 EF000022-001.