93600533
Lock Washer - AD, 123
SAF-Holland

This lock washer is sized for the NEWAY AD Series Truck/Tractor suspension line, featuring a 5 inch length, 0.13 inch thickness, 2 inch inner diameter, and 4 inch outer diameter. Its primary function is to resist loosening caused by vibration and dynamic loads across critical fastener joints, ensuring that assemblies maintain their preload and alignment over time. The washer’s geometry provides a spring-like action that helps compensate for minor surface irregularities and enhances friction between mating surfaces, reducing the likelihood of boltback or loosening under shocks and road disturbances. Integrated into the AD Series family, it complements other locking and spacing elements to maintain suspension geometry and ride stability. VMRS 053-007-007 categorizes it within the truck/trailer suspension fastener subset, and there are no additional cross references listed for this item. Category 42595 places it in the broader Truck and Bus Suspensions hardware framework, where lock washers play a vital role in long-term reliability of high-vibration applications in heavy vehicles.