Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number L70-1 found under Gasket by W S Darley And Co. The National Stock Number assigned to this part is 5330013278655, 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 L70-1.