The 56 Series terminals are manufactured by Delphi and were used in OEM connectors on cars manufactured in the 50's, 60's 70's and early 80's.
The female terminal is also commonly used on "T" sender unit
Manufacturer: Delphi Connection Systems
Gender: Male & Female
Contact Plating: Tin (Male)
Cable Diameter / Insulation Range: 2.95 - 3.13mm
Contact Material: Brass