Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 505-4325-003 found under by Sierra Nevada Corporation. The National Stock Number assigned to this part is 5826000367387, and the Federal Supply Class is 5826 Radio Navigation Equipment Airborne. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 505-4325-003.