S-5909K251 0.377" ID x 13/16" OD Washers for Needle-Roller Thrust Bearings

Key Features & Benefits at a Glance

• Precision dimensional control ensures perfect fit and alignment for 3/8" shafts, reducing assembly time and preventing equipment misalignment.
• Robust steel construction provides excellent load distribution and resistance to deformation under pressure, extending the service life of your assemblies.
• Tight tolerance specifications (ID: 0" to 0.01", OD: -0.03" to -0.01") guarantee consistent performance and interchangeability in high-precision industrial applications.
• Full RoHS 3 and REACH compliance assures environmental safety and material sustainability, meeting stringent international regulatory standards for your projects.
• Optimized 0.032" thickness offers an ideal balance between structural integrity and space-saving design for compact machinery and equipment.
• Corrosion-resistant steel material enhances durability in demanding environments, reducing maintenance frequency and total cost of ownership.

Professional Applications & Engineering Value

This precision steel washer is engineered to solve critical challenges in mechanical power transmission and rotating assemblies. Its exact 0.377" ID and 13/16" OD dimensions with controlled tolerances prevent shaft wobble and bearing misalignment, a common failure point in 3/8" shaft applications. The steel material provides superior surface pressure distribution, protecting sensitive components from wear and deformation. For OEMs and maintenance teams, this industrial washer delivers reliable performance in conveyor systems, motor mounts, and agricultural machinery, where vibration resistance and long-term durability are paramount. The RoHS & REACH compliant construction further ensures your products meet global market access requirements without compromising on mechanical performance.

Specification Summary & Compliance

This inch-system washer features an ID of 0.377" (0" to +0.01" tolerance), OD of 13/16" (-0.03" to -0.01" tolerance), and thickness of 0.032" (-0.002" to 0" tolerance), engineered for a 3/8" shaft diameter. Manufactured to precise dimensional standards for reliable fit and function. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring adherence to the latest environmental and safety directives for hazardous substances.