Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 3129989-01 found under Blower Assembly Vacuum by Ampex Systems Corp. The National Stock Number assigned to this part is 7045001636220, and the Federal Supply Class is 7045 Adp Supplies. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 3129989-01.