Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number HE1-1 found under by Dura Bond Bearing Co Inc. The National Stock Number assigned to this part is 3120003582256, and the Federal Supply Class is 3120 Bearings Plain Unmounted. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like HE1-1.