S-91102A013 0.227" ID x 0.377" OD ASME B18.21.1 Split Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance through the split lock design that maintains consistent spring tension under dynamic loads
• Enhanced corrosion protection with zinc-plated steel construction for extended service life in harsh industrial environments
• Reliable locking performance with precise 0.227" ID ensuring secure fitment for No. 12 screws without loosening
• Optimized mechanical strength featuring Rockwell C38 hardness for durable performance under high-stress applications
• Industry-standard compliance meeting ASME B18.21.1 specifications for dimensional accuracy and functional reliability
• Environmental responsibility with RoHS 3 and REACH compliance for safe use across regulated industries
• Versatile installation with 0.377" OD and 0.056" thickness providing optimal surface contact and distribution of clamping force

Professional Applications & Engineering Value

These split lock washers deliver critical vibration-resistant capabilities for industrial assemblies where mechanical fasteners face constant dynamic stresses. The zinc-plated steel construction provides essential corrosion resistance while maintaining the spring characteristics necessary for effective locking action. Engineered to ASME B18.21.1 standards, these washers address the common challenge of fastener loosening in machinery, automotive components, and electrical enclosures. The precise internal diameter of 0.227" ensures perfect compatibility with No. 12 screws, creating reliable joints that withstand operational vibrations. This combination of material properties and dimensional precision makes them ideal for maintenance, manufacturing, and assembly operations requiring dependable vibration-resistant fastening solutions.

Specification Summary & Compliance

Manufactured to ASME B18.21.1 dimensional and functional specifications, these split lock washers maintain precise tolerances for consistent performance. The inch system measurements include 0.227" internal diameter, 0.377" outer diameter, and 0.056" thickness specifically engineered for No. 12 screw applications. The washers feature Rockwell C38 hardness for optimal spring performance and meet comprehensive regulatory requirements including RoHS 3 (2015/863/EU) compliance and REACH (EC 1907/2006) standards for environmental safety and restricted substance control.