13990066 – Wright Spring Washer, 0.945" OD × 0.400" ID (Genuine Wright OEM Part) The Wright 13990066 is a genuine OEM spring washer, engineered to provide consistent tension and vibration resistance in fastening applications on compatible Wright lawn and turf equipment. With a 0.945-inch outer diameter and 0.400-inch inner diameter, this spring washer helps maintain clamping force and reduce the risk of fastener loosening during operation. Manufactured to Wright original equipment specifications, the washer is produced from high-strength spring steel designed to retain elasticity under load, vibration, and repeated use in demanding commercial mowing environments. Using a genuine Wright spring washer ensures correct fitment, proper tension characteristics, and factory-approved fastening performance. Product Details Manufacturer Part Number: 13990066 Brand: Wright Part Type: Spring Washer Inner Diameter: 0.400 inch Outer Diameter: 0.945 inch System: Fastening / hardware system Function: Maintains tension and resists fastener loosening Material: High-strength spring steel OEM Status: Genuine Wright OEM replacement Function Applies spring tension under bolts or nuts Helps prevent loosening caused by vibration Maintains consistent clamping force Supports secure fastening in dynamic applications Compatible With The Wright 13990066 Spring Washer is used on select Wright equipment, including: Wright stand-on mowers Wright commercial lawn and turf equipment Wright chassis, deck, and control assemblies using spring washers (Exact compatibility depends on the specific Wright model and fastening location.) How It’s Used This spring washer installs between the bolt head or nut and the mating surface, where its spring action maintains tension after tightening. Correct seating is essential to ensure effective vibration resistance. Always match the washer with the correct fastener size and torque specifications. Suggested Maintenance Inspect spring washers during service for flattening or loss of tension Replace washers showing deformation, cracking, or corrosion Do not reuse spring washers that have lost elasticity Use only OEM-specified washers to maintain fastening integrity The Wright 13990066 Spring Washer (0.945" OD × 0.400" ID) is used in OEM-specified Wright fastening systems where vibration resistance, durability, and secure clamping are essential.
