Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 204 031 158 46 found under Frame Nose by Bell Helicopter Textron Inc. The National Stock Number assigned to this part is 1560012163012, and the Federal Supply Class is 1560 Airframe Structural Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 204 031 158 46.