Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 4284 found under Cord Assembly Elastic by Tech Resources Inc. The National Stock Number assigned to this part is 4020014206057, and the Federal Supply Class is 4020 Fiber Rope Cordage And Twine. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 4284.