Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 0Z5748765 ITEM 123 found under O Ring by Flender Corporation. The National Stock Number assigned to this part is 5331013416492, 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 0Z5748765 ITEM 123.