Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number D2830 found under Seal Plain by Insinger Machine Company The. The National Stock Number assigned to this part is 5330014634727, 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 D2830.