Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number K21 15649 08 found under Clamp Loop by Klinge Corporation. The National Stock Number assigned to this part is 5340016333848, 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 K21 15649 08.