S-91475A186 1.129" ID x 1.847" OD ASME B18.21.1; MS35338-149 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 the split lock design that maintains constant tension under dynamic loads
- Exceptional corrosion resistance with passivated 18-8 stainless steel construction for harsh industrial environments
- Reliable locking performance with Rockwell C35 hardness ensuring consistent spring action and fastener security
- Precise dimensional compatibility with 1.129" ID specifically engineered for 1 1/8" screw applications
- Heavy-duty construction with 0.281" thickness and 1.847" OD for maximum load distribution and durability
- Industry-standard compliance meeting ASME B18.21.1 and MS35338-149 specifications for quality assurance
- Environmental responsibility with full RoHS 3 and REACH compliance for global regulatory requirements
Professional Applications & Engineering Value
This split lock washer delivers critical vibration-resistant performance in demanding industrial settings where fastener loosening can compromise system integrity. The passivated 18-8 stainless steel construction provides excellent corrosion resistance in chemical processing, marine, and outdoor applications, while the precise 1.129" ID ensures perfect fitment for 1 1/8" screw sizes. Engineered to maintain constant spring tension under dynamic loads, this washer prevents rotational loosening in heavy machinery, automotive assemblies, and structural frameworks. The standard split lock design offers reliable performance across temperature variations and mechanical stress cycles, making it ideal for maintenance-critical applications where downtime is not an option.
Specification Summary & Compliance
Manufactured to exacting dimensional standards with 1.129" inner diameter, 1.847" outer diameter, and 0.281" thickness for precise fitment. Complies with ASME B18.21.1 mechanical specifications and MS35338-149 standards for split lock washers. Features Rockwell C35 hardness for optimal spring performance. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, including the latest SVHC requirements as of June 2023.
