Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 4050210 found under Seal Ring Metal by Funk Mfg Co. The National Stock Number assigned to this part is 5330009891906, 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 4050210.