S-5185N125 1.534" ID x 2.419" OD ASME B18.21.1 Split Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance through split lock design prevents fastener loosening in high-stress applications
• Enhanced corrosion protection with black-oxide steel construction extends service life in demanding environments
• Optimal hardness rating of Rockwell C38 ensures consistent performance under heavy loads without deformation
• Precise dimensional compatibility with 1 1/2" screws provides reliable fit and secure fastening
• Robust 0.375" thickness delivers exceptional spring tension and load distribution capabilities
• Industry-standard compliance with ASME B18.21.1 guarantees engineering reliability and interchangeability
• Environmental regulation adherence with RoHS 3 and REACH compliance for safe industrial usage

Professional Applications & Engineering Value

These black-oxide steel split lock washers provide critical vibration-resistant solutions for industrial machinery, heavy equipment, and structural applications where constant motion and dynamic loads threaten fastener integrity. The split lock washer design creates continuous spring tension that compensates for thermal expansion, material relaxation, and vibrational forces that typically cause conventional fasteners to fail. Engineered with Rockwell C38 hardness, these washers maintain their spring properties under extreme pressure while the black-oxide surface treatment offers superior corrosion resistance in humid or chemically aggressive environments. The precise 1.534" ID and 2.419" OD dimensions ensure perfect compatibility with standard 1 1/2" fasteners, making them ideal for maintenance, manufacturing, and assembly operations requiring reliable, long-term locking performance.

Specification Summary & Compliance

This split lock washer features inch system dimensions with 1.534" inner diameter, 2.419" outer diameter, and 0.375" thickness specifically designed for 1 1/2" screw applications. Manufactured to ASME B18.21.1 standards for dimensional accuracy and mechanical properties, these washers deliver consistent performance across industrial applications. The product maintains full compliance with RoHS 3 (2015/863/EU) regulations and REACH (EC 1907/2006) requirements, ensuring environmental safety and regulatory acceptance for global industrial markets.