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Johnny Ball Sizes

(Span Wire Insulators)

The following is compiled from the information on ICON. It includes information from Mike Guthrie, Bill Meier, Ed Holland, Brian Riecker and Mike Doyle. Information from catalogs and CD drawings are also included.

Dark Blue: Data from ICON
Green: Small and large sizes in Hemingray Catalog
Purple: Small and large sizes in Brookfield Catalog
Orange: CD 1138, CD 1140, CD 1142

Note that the small Hemingray and the large Brookfield match a reported size within 1/8"

My personal conclusions:

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Last updated July 10, 2007