Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number S12-100 8 OUNCES found under Oil Standard Spectr by Conoco Inc. The National Stock Number assigned to this part is 6635011287821, 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 S12-100 8 OUNCES.