Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number D20052-11 found under Filter Assembly Electrical by Hy Cal Engineering. The National Stock Number assigned to this part is 5915013078854, 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 D20052-11.