Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number DEE 4-20 12KV 3PH 480V ITEM 22 found under Gasket by Dover Corp. The National Stock Number assigned to this part is 5330014223009, 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 DEE 4-20 12KV 3PH 480V ITEM 22.