Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number TIB-709-E FIG.55 ITEM 6 found under O Ring by Vaf Instruments Bv. The National Stock Number assigned to this part is 5331013614642, 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 TIB-709-E FIG.55 ITEM 6.