S-90183A314 0.161" ID x 0.438" OD Washers for Blind Rivets

Key Features & Benefits at a Glance

• Superior corrosion resistance from 18-8 stainless steel construction, ensuring long-term reliability in humid or chemically aggressive environments.
• Precise dimensional fit with 0.161" ID and 0.438" OD, providing secure seating and uniform load distribution for 5/32" rivets.
• Durable mechanical performance due to consistent 0.058–0.068" thickness, maintaining structural integrity under vibration and load.
• Broad industrial compatibility with inch-system fasteners, simplifying sourcing and replacement in North American manufacturing.
• Environmental and workplace safety ensured by full compliance with RoHS 3 and REACH regulations, supporting sustainable operations.
• Cost-effective maintenance through reliable, rust-resistant properties that reduce replacement frequency and downtime.

Professional Applications & Engineering Value

This 18-8 stainless steel flat washer is engineered to address common industrial challenges such as fastener loosening, corrosion-induced failure, and inconsistent load bearing. Its corrosion-resistant material makes it ideal for outdoor equipment, marine hardware, food processing machinery, and chemical plants where moisture or harsh substances are present. The precise 0.161" ID and 0.438" OD ensure a snug fit with 5/32" rivets, preventing misalignment and distributing pressure evenly to protect joined materials. By integrating this flat washer into your assembly, you enhance joint durability, reduce maintenance costs, and uphold safety in demanding industrial applications.

Specification Summary & Compliance

This flat washer meets standard inch-system dimensional requirements with an inner diameter of 0.161", outer diameter of 0.438", and thickness ranging from 0.058" to 0.068". It is designed for use with 5/32" rivet diameters and is manufactured from 18-8 stainless steel for consistent performance. The product conforms to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free of restricted hazardous substances and safe for industrial and environmental use.