Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number NF20131-1 found under Filter Radio Frequency Interfere by Cornell Dubilier Electronics. The National Stock Number assigned to this part is 5915008056268, 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 NF20131-1.