90036177
Flat Washer 1 141
SAF-Holland

In heavy‑duty trailer axle and suspension assemblies, a precisely sized, flat‑style surface provides critical load distribution between fasteners and mounting surfaces. The item features a 0.20 in thickness with an inner bore of 1.13 in and an outer diameter of 4.0 in, delivering a defined clamping surface that mitigates localized surface deformation and bolt fatigue under high vibration and load cycles. Used where axial spacing and seating accuracy are essential, this component helps maintain alignment and seal integrity through wide temperature ranges and rough road conditions. By spreading the clamp force over a larger area, it reduces the risk of loosening, galling, and uneven load transfer in high‑stresses common to trailer axles and suspension interfaces. Its designation within the Trailer Axle and Suspension family and alignment with VMRS code 053-007-008 supports proper maintenance planning, inventory control, and interchangeability with compatible fasteners in standard trailer applications. Cross references, such as TDA R304363, assist technicians in verifying application compatibility during parts selection, ensuring reliable service life and predictable performance in fleet operations.