Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number NK3428 found under Fiber Rope Assembly Single Leg by Nielsen Kellerman Co. The National Stock Number assigned to this part is 4020015073328, 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 NK3428.