3 3/4" X 3" (95mm X 76mm)
(ear incuse) PINCO {Porcelain Insulator Co.}
Picture courtesy Shaun Kotlarsky |
U-631: USA
3 3/4" X 3" (95mm X 76mm)
(ear incuse) PINCO {Porcelain Insulator Co.}
Picture courtesy Shaun Kotlarsky |
U number assignment by Jack Tod.
Return to the National Insulator US Unipart page