Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 12042-0031 found under Semiconductor Device Diode by Honeywell Aerospace. The National Stock Number assigned to this part is 5961004654405, 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 12042-0031.