N-TBD: United States (USA)
3 1/2” - 3” – 2 7/8” X 3 3/8” (90mm - 76mm - 73mm X 87mm)
No markings (pink asbestos material)
Picture courtesy Rick Soller |
3 1/2” - 3” X 2 1/4” (90mm - 76mm X 57mm)
No markings (top section - dimensions not including bolt)
Picture courtesy Rick Soller |
2 7/8” X 1 1/8” (73mm X 29mm)
No markings (base section)
Picture courtesy Rick Soller |
This unique insulator is made in two pieces with a bolt between bottom and top pieces.