S-5185N127 2.039" ID x 2.936" 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 for extended service life in harsh environments
• Optimal hardness performance with Rockwell C38 rating ensures consistent spring action and load distribution
• Precision dimensional compatibility with 2" screw sizes for reliable fit and secure fastening
• Industry-standard compliance with ASME B18.21.1 specifications guarantees engineering reliability
• Environmental regulation adherence with RoHS 3 and REACH compliance for global industrial use
• Heavy-duty construction with 0.422" thickness provides maximum bearing surface and locking force

Professional Applications & Engineering Value

This heavy-duty split lock washer delivers exceptional engineering value in demanding industrial environments where vibration-induced fastener failure poses significant operational risks. The black-oxide steel construction combined with Rockwell C38 hardness creates an optimal balance between corrosion resistance and mechanical strength, ensuring reliable performance in machinery, heavy equipment, and structural applications. The split lock design generates continuous spring tension that compensates for thermal expansion, material relaxation, and dynamic loads. Engineered specifically for 2" screw sizes with precise 2.039" ID dimensions, this washer maintains secure fastening in high-vibration scenarios common in manufacturing, construction, and transportation equipment. The ASME B18.21.1 standard compliance ensures consistent quality and performance across industrial applications.

Specification Summary & Compliance

This split lock washer features precise dimensional specifications with 2.039" inner diameter, 2.936" outer diameter, and 0.422" thickness, engineered for compatibility with 2" screw sizes. Manufactured to ASME B18.21.1 standards with Rockwell C38 hardness certification, ensuring consistent mechanical properties and performance reliability. The product maintains full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, making it suitable for global industrial distribution and use in regulated industries.