Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number AV6-823B1 found under Sleeve by Clyde Union Inc. The National Stock Number assigned to this part is 4320009689973, and the Federal Supply Class is 4320 Power And Hand Pumps. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like AV6-823B1.