S-95395A106 0.172" ID x 0.375" OD Oversized Washers

Oversized Washers

1248FA00538 Oversized Washers
1248FA00538 Oversized Washers

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

Part No.
Part No. 1248FA00538
Equivalent to mcmaster :
95395A106

Basic Information

System of Measurement Inch
Washer Type Flat

Dimension Parameters

ID 0.172"
OD 0.375"
Thickness 0.049-0.068"

Material & Strength Parameters

Material Brass
Hardness Rockwell B60

Installation & Application Parameters

For Screw Size No. 8

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 brass construction, ideal for humid or chemically aggressive environments
  • Optimal load distribution with precise 0.172" ID and 0.375" OD dimensions, preventing surface damage to materials
  • Enhanced durability with Rockwell B60 hardness, maintaining shape under repeated tightening cycles
  • Perfect compatibility with No. 8 screws, ensuring secure fastening without loosening
  • Regulatory compliance with RoHS 3 and REACH standards, safe for global industrial applications
  • Reliable electrical conductivity from copper alloy material, beneficial for grounding and electronic assemblies
  • Consistent thickness tolerance (0.049-0.068") for uniform pressure application in precision assemblies

Professional Applications & Engineering Value

This brass flat washer delivers exceptional performance in demanding industrial settings where corrosion resistance and electrical conductivity are critical. The copper alloy construction naturally resists oxidation and galvanic corrosion, making it ideal for marine, plumbing, and electrical enclosures. With precise inch dimensions (0.172" ID × 0.375" OD) and Rockwell B60 hardness, it maintains structural integrity under vibration and thermal cycling, preventing fastener loosening in No. 8 screw applications. The controlled thickness ensures even load distribution, protecting sensitive surfaces from indentation while providing reliable insulation against electrolytic corrosion in multi-metal assemblies.

Specification Summary & Compliance

Manufactured to standard inch system specifications with ID 0.172", OD 0.375", and thickness range 0.049-0.068". Designed specifically for No. 8 screw applications with Rockwell B60 hardness ensuring mechanical durability. Fully compliant with RoHS 3 (2015/863/EU) under exemption 6(c) for lead in copper alloy and REACH (EC 1907/2006) regulations (updated 01/17/2023, 233 SVHC), meeting international environmental and safety standards for industrial components.

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