Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number AY58150A found under Bearing Ball Annula by Duriron Co Inc. The National Stock Number assigned to this part is 3110014932215, 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 AY58150A.