4" X 5" (102mm X 127mm)
No markings
Picture courtesy Bob Berry |
U-223A/B: USA
4" X 5" (102mm X 127mm)
No markings
Picture courtesy Bob Berry |
U number assignment by Jack Tod. Note this is a two part insulator - the top gets the A suffix and the bottom the B.
Return to the National Insulator US Unipart page