S-92917A155 0.26" ID x 0.562" OD General Purpose Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance thanks to nickel-plated brass construction, ideal for harsh industrial environments
• Excellent load distribution with a 0.562" outer diameter, preventing surface damage and loosening under 1/4" screw heads
• Precise fit and alignment ensured by the 0.26" inner diameter, compatible with standard 1/4" fasteners
• Enhanced durability and deformation resistance from Rockwell B60 hardness, maintaining performance under repeated stress
• Consistent thickness control between 0.030" and 0.050" for uniform clamping force and vibration resistance
• Full regulatory compliance with RoHS 3 and REACH standards, ensuring safe use in global markets
• Reliable electrical conductivity inherent to brass material, suitable for electronic and grounding applications

Professional Applications & Engineering Value

This nickel-plated brass flat washer delivers critical engineering solutions where corrosion resistance and electrical conductivity are paramount. The brass core provides natural anti-galling properties while the nickel plating creates a barrier against oxidation in marine, chemical, and outdoor applications. Its precise 0.26" ID ensures perfect alignment with 1/4" screws, eliminating installation issues and reducing assembly time. The controlled 0.030-0.050" thickness maintains consistent preload in vibration-prone equipment, while the Rockwell B60 hardness prevents permanent deformation in high-pressure joints. These industrial washers are particularly valuable in electrical enclosures, plumbing systems, and machinery where both corrosion protection and reliable electrical paths are required.

Specification Summary & Compliance

This flat washer features inch system dimensions with 0.26" inner diameter and 0.562" outer diameter, manufactured to standard commercial tolerances for 1/4" screw size applications. The nickel-plated brass construction meets industry standards for corrosion-resistant washers. Compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring restriction of hazardous substances and safe chemical management according to the latest SVHC list (updated 06/14/2023).