Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number J94-0138 found under Semiconductor Device Diode by Ward Leonard Electric Company Inc. The National Stock Number assigned to this part is 5961008156815, 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 J94-0138.