S-90231A141 0.281" ID x 0.625" OD SAE Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance from nickel plating over brass, ideal for humid or chemically exposed environments
• Precise dimensional fit with 0.281" ID and 0.625" OD ensures secure seating for 1/4" screws, reducing installation errors
• Excellent electrical conductivity of brass material supports grounding and electrical applications
• Durable construction with consistent 0.051-0.080" thickness for even load distribution and vibration resistance
• SAE standard compliance guarantees interchangeability and reliability in inch-system assemblies
• REACH regulatory compliance ensures safe use in industrial markets without hazardous substance concerns
• Non-magnetic properties make these washers suitable for sensitive electronic and instrumentation equipment

Professional Applications & Engineering Value

These Nickel Plated Brass SAE Flat Washers deliver critical performance in demanding settings where corrosion resistance and electrical conductivity are paramount. The brass core provides inherent anti-galling and non-sparking properties, while the nickel plating significantly enhances surface durability against oxidation and wear. Engineers specify these inch-system washers for electrical enclosures, marine hardware, and precision instruments to prevent galvanic corrosion when mating with 1/4" screws. Their consistent flat washer profile ensures reliable load bearing and sealing in assemblies subjected to thermal cycling or vibration, reducing maintenance intervals and component failure in industrial and mechanical applications.

Specification Summary & Compliance

This washer conforms to SAE standards for dimensional accuracy in the inch system, with inner diameter of 0.281", outer diameter of 0.625", and thickness ranging 0.051-0.080". It is manufactured for use with 1/4" screws and is compliant with REACH (EC 1907/2006) regulations as of June 14, 2023, covering 235 SVHCs. The nickel plated brass material ensures consistent performance without hardness rating requirements for general fastening applications.