Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number H8688PC44 found under Gear Helical by Lear Siegler Inc. The National Stock Number assigned to this part is 3020002387670, and the Federal Supply Class is 3020 Gear Pulley Sprocket And Transmission Chain. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like H8688PC44.