Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 31304-11700 found under Cap Valve Stem by Mitsubishi Intl Corp. The National Stock Number assigned to this part is 2815014189532, and the Federal Supply Class is 2815 Diesel Engines And Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 31304-11700.