Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number BOM 023-80435-0 ITEM 52 found under O Ring by Parker Hannifin Ltd. The National Stock Number assigned to this part is 5331016020410, 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 BOM 023-80435-0 ITEM 52.