Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 412 899 177 101 found under Fuel Cell Mid Lower by Bell Helicopter Textron Inc. The National Stock Number assigned to this part is 6116012539936, and the Federal Supply Class is 6116 Fuel Cell Power Units Components And Accessories. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 412 899 177 101.