Special Features:

Requirement no. 5c incl the lg of holder mtg posts which extend 1-11/16 in. From ring, 4 rectangular mtg posts spaced 4 in. C to c on a 5-5/8 in. Diameter circle

Properties:

An item made of metallic or insulating material to form a rigid loop whose axial length does not exceed 25 percent of its outside dimensions. It performs the function of retaining and positioning one or more holder, electrical contact brush. The item does not include the brush holder(s).