Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 3412 found under Carrier Planetary Gears by Dp Mfg Inc. The National Stock Number assigned to this part is 3040016136828, and the Federal Supply Class is 3040 Miscellaneous Power Transmission Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 3412.