This part is a kind of semiconductor called 1413.
Function of this product has Bulk Metal Foil Technology 8 Pin Transistor Outline Hermetic Resistor Network.
Manufacturers : Vishay Siliconix
Image and pinout :

Some of the text within the PDF file :
1413 Vishay Foil Resistors Bulk Metal® Foil Technology 8 Pin Transistor Outline Hermetic Resistor Network The eight pin TO-5 package with a 0.200" pin circle, is the most popular package for uncomplicated networks. This network can contain up to 9, V5X5 resistor chips. Product may not be to scale Review data sheet “7 Technical Reasons to Specify Bulk Metal® Foil Resistor Networks.” ORDERING INFORMATION - 1413 PARTS Networks are built to your requirements. Send your schematic and electrical requirements to the Applications Engineering Department. (See data sheet “Network Worksheet.”) A unique part number will be assigned which defines all aspects of your network. THROUGH HOLE FIGURE 1 - STANDARD DIMENSIONS in inches (millimeters) 0.305 –0.335 (7.75 –8.51) 0.200 MAXIMUM (5 [ ... ]
1413 PDF Datasheet Download
