Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number HM40225 found under Bearing Sleeve by Hoffert Marine Inc. The National Stock Number assigned to this part is 3120001772961, 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 HM40225.