Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number VD261-0006-0004 found under Seal Ring Metal by Enviropak Inc. The National Stock Number assigned to this part is 2845007574552, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like VD261-0006-0004.