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-700 through U-775 are cable top styles with two inner skirts

U-701

U-705

U-710

U-737

U-738

U-744

U-746

U-753

U-776 through U-805 are Hi-top styles 
   

U-780

U-783

U-784

U-784A

U-788

U-797A

U-799

U-802

U-807 through U-844 are ridged skirt styles similar to post insulators 

U-818

U-821

U-833

U-846 through U-861 are fog bowl styles designed for use in wet or contaminated climates 

U-850

U-853

U-856

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