Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number MS67-8219 FIGURE 6 found under O Ring by Sabbamerica East Inc. The National Stock Number assigned to this part is 5331012973000, 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 MS67-8219 FIGURE 6.