Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number S3C100-12-02 found under Pressure Bleeder Lock Assembly V by Vacco Industries. The National Stock Number assigned to this part is 4820011714496, and the Federal Supply Class is 4820 Valves Nonpowered. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like S3C100-12-02.