Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 77-0923-6PC23 found under Impeller Fan Centrifugal by Valad Electric Heating Corp. The National Stock Number assigned to this part is 4140001558012, and the Federal Supply Class is 4140 Fans Air Circulators And Blower Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 77-0923-6PC23.