Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number LD131-0028-0608 found under Bearing Sleeve by F P A Manufacturing. The National Stock Number assigned to this part is 3120015821658, 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 LD131-0028-0608.