I am guessing this is a shoe for a window spring on a Carefree Window. Length of spring tube: 27 inches Diameter of spring tube: 3/8 inch Tip color of spring is orange with 2 cross prongs.
Casey from SWISCO responded:
April 12, 2019
Compare your pivot shoe to our 15-045. For your spiral balance, please see our S900-27 with a red tip. Red and orange tips are considered the same in the trade.