S-92147A420 0.148" ID x 0.25" OD ASME B18.21.1 Split Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance prevents loosening under dynamic loads, ensuring long-term joint integrity in demanding environments.
• Exceptional corrosion resistance from 316 stainless steel construction, ideal for harsh industrial, marine, and chemical applications.
• High hardness rating (Rockwell C35) provides durable spring action and maintains locking force over repeated use cycles.
• Precision dimensional compliance with ASME B18.21.1 standards guarantees consistent performance and interchangeability.
• Reliable split lock design creates continuous tension against fastener and surface, eliminating the need for additional locking devices.
• Full regulatory compliance with RoHS 3 and REACH standards ensures safe use in regulated industries and global markets.
• Optimized size compatibility with No. 6 screws (0.148" ID) enables easy installation and secure fit in standard assemblies.

Professional Applications & Engineering Value

This 316 stainless steel split lock washer delivers critical vibration resistance in applications where thermal cycling, mechanical stress, and corrosive environments compromise fastener integrity. The standard split lock design applies constant spring force that counters rotational loosening, while the marine-grade 316 stainless steel composition withstands chloride exposure and acidic conditions far better than standard alternatives. Engineers specify these ASME B18.21.1 compliant washers for heavy machinery, processing equipment, marine hardware, and chemical plant assemblies where reliability cannot be compromised. The combination of Rockwell C35 hardness and precise dimensional control ensures consistent performance in high-cycle applications, reducing maintenance frequency and preventing costly downtime.

Specification Summary & Compliance

This split lock washer features inch measurements with 0.148" ID, 0.25" OD, and 0.031" thickness specifically designed for No. 6 screws. Manufactured to ASME B18.21.1 specifications with Rockwell C35 hardness ensuring proper spring function. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting the latest environmental and safety standards for industrial components.