13990072 – Wright Flat Washer, Hardened Steel (Genuine Wright OEM Part) The Wright 13990072 is a genuine OEM flat washer manufactured from hardened steel, designed for high-load fastening applications on compatible Wright lawn and turf equipment. Hardened flat washers are used where increased strength, wear resistance, and consistent load distribution are required—especially in critical structural, drivetrain, and high-torque assemblies. Manufactured to Wright original equipment specifications, this washer is heat-treated to resist deformation, embedding, and wear under heavy clamping force. Using a genuine Wright hardened washer ensures correct hardness, precise fitment, and long-term fastening reliability in demanding commercial mowing environments. Product Details Manufacturer Part Number: 13990072 Brand: Wright Part Type: Flat Washer Material: Hardened Steel System: Fastening / hardware system Function: Load distribution and surface protection under high torque OEM Status: Genuine Wright OEM replacement Function Distributes clamping force evenly Prevents fastener head or nut from digging into surfaces Resists deformation under high load Improves long-term fastener stability Compatible With The Wright 13990072 Hardened Flat Washer is used on select Wright equipment, including: Wright stand-on mowers Wright commercial lawn and turf equipment Wright chassis, deck, drivetrain, and structural assemblies High-torque fastener locations requiring hardened washers (Exact compatibility depends on the specific Wright model and fastening application.) How It’s Used This hardened washer installs between the bolt head or nut and the mating surface, especially in applications where soft washers could deform. Its hardened construction maintains proper clamping force and protects both fastener and component surfaces. Always pair with OEM-specified fasteners and torque values. Suggested Maintenance Inspect hardened washers during service for cracks or excessive wear Replace washers that show surface scoring or deformation Do not substitute with non-hardened washers in high-load locations Use OEM hardware to maintain correct fastening performance The Wright 13990072 Hardened Steel Flat Washer is used in OEM-specified Wright fastening systems where strength, durability, and secure load distribution are essential.
