Home / Recreation / Elliptical Flat Washer 178537 Elliptical Flat Washer 178537$2.16 Price may not be up-to-date. In Stock View Product Part Number: 178537 Brand: PROFORM FITNESS PRODUCTS, INC Seller: Sears PartsDirect Category: Recreation Not Returnable Description This flat washer (part number 178537) is for ellipticals. Unplug the elliptical before installing this part. Wear work gloves to protect your hands.