1-190

191-225 228-376 377-435 436-699 701-861

862-914

922-964
National Insulator Association (NIA) logo

Threaded Unipart Porcelain Insulators

From the United States

 

Note:  Click on each insulator for larger pictures and more information!

U-191 through U-225 are telephone transposition styles

U-191A

U-192

U-192A

U-193

U-194

U-195

U-198

U-199A

U-200

U-201

U-202

U-202A

U-205

U-206

U-206A

U-206B

U-207D

U-208

U-208A

U-209

U-211

U-212

U-213

   

U-215

U-217A

U-220A/B

U-223A/B

U-225A/B

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862-914

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