Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 5 581 N674 70 found under O Ring Bell by Parker Hannifin Corporation. The National Stock Number assigned to this part is 5330997264725, and the Federal Supply Class is 5330 Packing And Gasket Materials. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 5 581 N674 70.