Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number JTOR INT 158.1X5.33N found under O Ring by Pecofacet Oklahoma Llc. The National Stock Number assigned to this part is 5331000263123, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like JTOR INT 158.1X5.33N.