Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number S1D10025 ITEM 20 found under Semiconductor Device Diode by Vacco Industries. The National Stock Number assigned to this part is 5961012157184, and the Federal Supply Class is 5961 Semiconductor Devices And Associated Hardware. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like S1D10025 ITEM 20.