S-90073A042 1.534" ID x 2.159" OD ASME B18.21.1 Split Lock Washers for Socket Head Screws

Key Features & Benefits at a Glance

• Superior vibration resistance due to the split lock design, ensuring fasteners remain securely tightened in high-motion environments.
• Exceptional durability from Rockwell C38 hardness, providing long-lasting performance under heavy loads and repeated stress.
• Precise dimensional fit with 1.534" ID and 2.159" OD, engineered specifically for 1 1/2" screw sizes to prevent misalignment and ensure reliable installation.
• Consistent quality and reliability by adhering to ASME B18.21.1 standards, guaranteeing interchangeability and performance in industrial applications.
• Enhanced safety and environmental compliance with RoHS 3 and REACH regulations, making it suitable for use in regulated industries without harmful substances.
• Robust construction from high-grade steel material, offering excellent strength and resistance to wear and corrosion in demanding conditions.
• Optimal load distribution with a 0.375" thickness, helping to reduce surface pressure and prevent damage to connected components.

Professional Applications & Engineering Value

This steel split lock washer is engineered to address common industrial challenges such as fastener loosening due to vibrations and dynamic loads. Its split lock design creates a spring-like action that maintains constant tension, effectively resisting vibration-induced failures in machinery, automotive assemblies, and heavy equipment. Made from high-strength steel and hardened to Rockwell C38, it withstands harsh operating conditions, including high-stress environments in construction, manufacturing, and transportation sectors. The precise 1.534" ID and 2.159" OD dimensions ensure a perfect fit for 1 1/2" screw sizes, reducing installation errors and enhancing overall system reliability. By incorporating ASME B18.21.1 standards, this washer delivers consistent performance, making it an essential component for engineers and procurement specialists seeking durable, vibration-resistant fastening solutions that meet rigorous industrial demands.

Specification Summary & Compliance

This split lock washer features precise dimensions including an ID of 1.534", OD of 2.159", and thickness of 0.375", designed for use with 1 1/2" screw sizes. It conforms to the ASME B18.21.1 standard for split lock washers, ensuring dimensional accuracy and functional reliability. The washer is manufactured from steel with a Rockwell C38 hardness for enhanced durability. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) confirms adherence to environmental and safety regulations, supporting use in global industrial applications.