Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number HD215A found under Bearing Bushing by Siemens Demag Delaval Turbomachi. The National Stock Number assigned to this part is 3110003993436, and the Federal Supply Class is 3110 Bearings Antifriction Unmounted. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like HD215A.