Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number AS81820 found under Bearing Plain Self Aligning by Society Of Automotive Engineers Inc. The National Stock Number assigned to this part is 3120012693274, 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 AS81820.