Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 12421281-002 found under Cooler Fluid Transmission by Bae Systems Land And Armaments L P. The National Stock Number assigned to this part is 2520013922330, and the Federal Supply Class is 2520 Vehicular Power Transmission Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 12421281-002.