Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 997-1258 found under Bushing Sleeve by A L D Inc. The National Stock Number assigned to this part is 3120011461215, 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 997-1258.