Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number HW-E0308-004 found under Clip Spring Tension by Raytheon E Systems Inc. The National Stock Number assigned to this part is 5340010513087, and the Federal Supply Class is 5340 Hardware Commercial. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like HW-E0308-004.