4 7/8" X 4 1/8" (124mm X 104mm) No markings [Aluminum coated top] {Porcelain Products}
Picture courtesy Mid Norris |
U-659A: USA
4 7/8" X 4 1/8" (124mm X 104mm) No markings [Aluminum coated top] {Porcelain Products}
Picture courtesy Mid Norris |
U number assignment by Elton Gish
Return to the National Insulator US Unipart page