S-95395A230 0.344" ID x 0.75" OD Oversized Washers

Oversized Washers

1248FA00545 Oversized Washers
1248FA00545 Oversized Washers

Image may differ from product. See technical specification for details.

Part No.
Part No. 1248FA00545
Equivalent to mcmaster :
95395A230

Basic Information

System of Measurement Inch
Washer Type Flat

Dimension Parameters

ID 0.344"
OD 0.75"
Thickness 0.105-0.130"

Material & Strength Parameters

Material Brass
Hardness Rockwell B60

Installation & Application Parameters

For Screw Size 5/16"

Finish & Compliance Parameters

RoHS RoHS 3 (2015/863/EU) compliant with exemption 6(c) - Lead in copper alloy
REACH REACH (EC 1907/2006) (01/17/2023, 233 SVHC) Compliant
Technical Drawings No drawings available at the moment, will be launched soon
In Stock
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Key Features & Benefits at a Glance

  • Superior corrosion resistance from high-quality brass material, ensuring long-term reliability in humid or chemically aggressive environments
  • Excellent load distribution with precise 0.344" ID and 0.75" OD dimensions, preventing surface damage and maintaining joint integrity
  • Optimized hardness performance with Rockwell B60 rating, providing consistent durability under repeated tightening cycles
  • Perfect compatibility specifically engineered for 5/16" screw applications, ensuring secure fastening and vibration resistance
  • Environmental compliance assurance with RoHS 3 and REACH certifications, meeting strict industrial safety and regulatory requirements
  • Reliable copper alloy composition offering excellent electrical conductivity and anti-galling properties for specialized applications
  • Precision thickness control between 0.105-0.130" for consistent performance and proper clamping force distribution

Professional Applications & Engineering Value

These brass flat washers deliver exceptional engineering value where corrosion resistance and electrical conductivity are critical. The copper alloy composition prevents galvanic corrosion when used with compatible metals, making them ideal for marine, electrical, and plumbing applications. With precise inch measurement specifications (0.344" ID x 0.75" OD), these washers provide optimal load distribution for 5/16" screw fastening systems, preventing surface damage to sensitive materials. The Rockwell B60 hardness ensures maintained flatness under pressure, while the lead-free brass construction addresses environmental concerns without compromising mechanical performance in industrial settings.

Specification Summary & Compliance

This flat washer features precise dimensional specifications with 0.344" internal diameter, 0.75" outer diameter, and thickness ranging 0.105-0.130". Manufactured to inch system standards for compatibility with 5/16" screw applications. The brass material achieves Rockwell B60 hardness for consistent performance. Compliance includes RoHS 3 (2015/863/EU) with exemption 6(c) for lead in copper alloy and full REACH (EC 1907/2006) compliance with the latest SVHC updates, ensuring adherence to international environmental and safety regulations for industrial components.

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