U-988: USA
2 1/2" X 2 3/4" (63mm X 69mm)
No markings
Picture courtesy Doug MacGillvary
U number assignment by Jack Tod
Return to the National Insulator US Unipart page
2 1/2" X 2 3/4" (63mm X 69mm)
Return to the National Insulator US Unipart page