S-91475A031 0.377" ID x 0.68" OD ASME B18.21.1; MS35338-141 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 prevents fastener loosening in high-stress applications
- Passivated 18-8 stainless steel construction provides excellent corrosion resistance for harsh environments
- Rockwell C35 hardness rating ensures long-term durability and spring tension retention
- Precision 0.377" ID design guarantees perfect fit for 3/8" screws and bolts
- ASME B18.21.1 & MS35338-141 compliance assures consistent quality and dimensional accuracy
- RoHS 3 and REACH compliance meets international environmental and safety standards
- Heavy-duty 0.68" OD with 0.094" thickness delivers optimal load distribution and locking force
Professional Applications & Engineering Value
These split lock washers are engineered to solve critical vibration-induced loosening problems in industrial assemblies. The passivated 18-8 stainless steel material provides exceptional corrosion resistance, making them ideal for marine, chemical processing, and outdoor applications where environmental factors compromise fastener integrity. The standard split lock design creates continuous spring tension that maintains clamping force under dynamic loads, while the precise 0.377" inner diameter ensures perfect compatibility with 3/8" screws in machinery, equipment manufacturing, and structural applications. The combination of Rockwell C35 hardness and compliant ASME B18.21.1 specifications delivers reliable performance in heavy-duty vibration environments where standard washers fail.
Specification Summary & Compliance
Manufactured to ASME B18.21.1 and MS35338-141 standards with precise dimensional tolerances including 0.377" ID, 0.68" OD, and 0.094" thickness. These split lock washers feature Rockwell C35 hardness and are fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. The inch system measurement ensures compatibility with North American industrial specifications and 3/8" screw size applications.
