Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number DS20S 120 240 30 1 found under Protector Series Circuit by L E A International Inc. The National Stock Number assigned to this part is 5920013914654, and the Federal Supply Class is 5920 Fuses Arresters Absorbers And Protector. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like DS20S 120 240 30 1.