Insulator Profile:
IN-56

IN-56
Copyright 2007.
All rights reserved.

CD: 1032
Manufacturer: Hemingray (Owens-Illinois)
Style Number: IN-56
Size: 1 1/2" W x 2 3/8" H w/ 3" lag bolt
Weight w/ pin: 6 oz.
Production Date: 1945
Usage: Telephone
"The IN-56 insulator is a military version of the CD 115. They were produced under government contract for the U. S. Army Signal Corps. A specification dated April 1, 1942 obtained from Lapp shows they were made in porcelain. A specification in August 21, 1941 also indicates the design of a porcelain version. The glass version was produced by Owens Illinois in 1945. Both were made with threaded steel pins with a detent for a wrench, for quick attachment to trees and poles. US Army field wire was strung from these insulators."

"The August 21, 1941 specifications indicate that a suitable cement compound should be used such as "Basolit, as made by the Nukem Products, Co, Buffalo, NY, Portland Cement, or equal" be used to secure the pin inside the insulator"

Variations:
Colors: Clear
Bases: Smooth
Embossings: (F-Skirt) [OI logo]/[Numbers and dots] (R-Skirt) IN-56

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