S-91475A730 0.502" ID x 0.869" OD ASME B18.21.1; MS35338-143 Mil. Spec. Split Lock Washers
Mil. Spec. Split Lock Washers
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Basic Information
Dimension Parameters
Material & Strength Parameters
Installation & Application Parameters
Finish & Compliance Parameters
Special Type Parameters
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Key Features & Benefits at a Glance
- Superior vibration resistance through split lock design prevents fastener loosening in high-stress applications
- Exceptional corrosion protection with passivated 316 stainless steel construction for harsh industrial environments
- Precise dimensional fit with 0.502" ID ensures perfect compatibility with 1/2" screw applications
- Enhanced durability from Rockwell C35 hardness maintains structural integrity under repeated loading
- Regulatory compliance assurance meeting both ASME B18.21.1 and MS35338-143 standards
- Environmental safety with full RoHS 3 and REACH compliance for global manufacturing requirements
- Reliable performance in inch measurement system for seamless integration with existing industrial equipment
Professional Applications & Engineering Value
This passivated 316 stainless steel split lock washer delivers critical vibration resistance in demanding industrial settings where fastener security is paramount. The split lock design creates constant spring tension against both the bearing surface and nut, effectively preventing loosening from machinery vibration, thermal cycling, and dynamic loads. Engineered to ASME B18.21.1 standards, this washer provides reliable performance in chemical processing, marine applications, and food processing equipment where corrosion resistance is essential. The precise 0.502" inner diameter ensures perfect fitment for 1/2" screw applications, while the passivated surface treatment enhances the natural corrosion resistance of 316 stainless steel, making it ideal for environments exposed to moisture, chemicals, and temperature extremes where maintenance access is limited.
Specification Summary & Compliance
This split lock washer features precise inch dimensions with 0.502" ID, 0.869" OD, and 0.125" thickness, manufactured to ASME B18.21.1 and MS35338-143 specifications. The 316 stainless steel construction with Rockwell C35 hardness ensures dimensional stability and mechanical performance. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations confirms environmental safety and chemical restriction adherence for global industrial applications.
