Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 902-1 2-829-90 found under O Ring by Parker Hannifin Corporation. The National Stock Number assigned to this part is 5331010584011, 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 902-1 2-829-90.