S-90474A187 0.281" ID x 1" OD ASME B18.21.1 ASME Washers

Key Features & Benefits at a Glance

• Exceptional corrosion resistance from titanium construction, ideal for harsh industrial environments and extending service life
• Superior strength-to-weight ratio provides reliable load distribution without adding significant weight to assemblies
• Rockwell B80 hardness ensures excellent surface durability and resistance to deformation under high-pressure applications
• Precision dimensional control with 0.281" ID and 1" OD guarantees perfect fit for 1/4" screws and consistent performance
• Full compliance with ASME B18.21.1 standards delivers guaranteed dimensional accuracy and interchangeability for engineering projects
• RoHS 3 and REACH compliance meets strict environmental regulations for safe use in global industrial supply chains
• Optimized thickness range (0.051-0.080") provides versatile spacing and spring tension capabilities for various assembly requirements

Professional Applications & Engineering Value

This titanium flat washer solves critical engineering challenges in demanding applications where corrosion resistance and high strength are paramount. The titanium material provides inherent protection against chemical degradation and galvanic corrosion, making it ideal for marine equipment, aerospace components, chemical processing systems, and medical devices. The precise 0.281" ID ensures secure seating on 1/4" screws, preventing loosening from vibration while the 1" OD distributes clamping forces effectively to protect sensitive surfaces. Manufactured to ASME B18.21.1 specifications, these washers deliver reliable performance in high-temperature and corrosive environments where standard steel washers would fail prematurely.

Specification Summary & Compliance

This flat washer features inch system dimensions with 0.281" internal diameter, 1" outer diameter, and thickness ranging from 0.051" to 0.080". The product conforms to ASME B18.21.1 dimensional standards and is manufactured from titanium with Rockwell B80 hardness. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations ensures environmental safety and unrestricted use in international markets.