S-90377A133 0.08" ID x 0.188" OD Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance from 18-8 stainless steel construction with black-oxide finish, ideal for harsh industrial environments
• Exceptional durability with Rockwell B68 hardness rating, maintaining structural integrity under repeated load cycles
• Precise dimensional fit with 0.08" ID specifically engineered for No. 1 screw size applications
• Optimal load distribution through 0.188" OD design, preventing surface damage and material deformation
• Reliable thickness tolerance between 0.040-0.060" ensures consistent performance in assembly operations
• Full regulatory compliance with RoHS 3 and REACH standards for environmentally responsible manufacturing
• Versatile inch system compatibility for seamless integration with existing industrial equipment and fastening systems

Professional Applications & Engineering Value

These black-oxide 18-8 stainless steel flat washers deliver critical engineering solutions where corrosion resistance and mechanical reliability are paramount. The inch system flat washer design addresses common industrial challenges including galvanic corrosion, chemical exposure, and vibration-induced loosening. Engineered for No. 1 screw size applications, they provide essential load distribution in precision assemblies, electrical enclosures, and machinery where consistent thickness (0.040-0.060") ensures uniform clamping force. The Rockwell B68 hardness rating guarantees long-term performance in demanding environments, while the black-oxide surface treatment enhances both aesthetic appeal and additional corrosion protection, making these washers ideal for OEM manufacturing, maintenance operations, and industrial equipment requiring corrosion resistant washers with regulatory compliance.

Specification Summary & Compliance

This flat washer features precise inch system dimensions with 0.08" internal diameter and 0.188" outer diameter, manufactured from 18-8 stainless steel with black-oxide surface treatment. The component maintains consistent thickness between 0.040-0.060" and achieves Rockwell B68 hardness for mechanical reliability. Manufacturing and material compliance includes full adherence to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring safe use in global industrial applications while meeting stringent quality control requirements for precision flat washers.