Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number BDS3115-113DH 3 found under O Ring by Coorstek Inc. The National Stock Number assigned to this part is 5331011276941, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like BDS3115-113DH 3.