Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 2431 ITEM NO.9 found under Grommet Metallic by Clark Reliance Corporation. The National Stock Number assigned to this part is 5325016183602, and the Federal Supply Class is 5325 Fastening Devices. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 2431 ITEM NO.9.