S-93493A345 0.125" ID x 0.438" OD MIL-I-24768/27 Plastic Washers

Key Features & Benefits at a Glance

• Exceptional thermal resistance – withstands continuous operation up to 280°F, ideal for high-temperature industrial environments
• Superior electrical insulation properties – fiberglass construction prevents current leakage in electrical assemblies
• Precise dimensional compatibility
• Enhanced durability and hardness – Rockwell M100 rating provides excellent wear resistance and long service life
• Rigorous military-grade compliance – meets MIL-I-24768/27 specifications for reliable performance in demanding applications
• Environmental regulation adherence – RoHS 3 and REACH compliance ensures safe use in regulated industries
• Corrosion-resistant fiberglass material – maintains integrity in harsh conditions without metallic degradation

Professional Applications & Engineering Value

This fiberglass flat washer delivers critical solutions for electrical insulation and high-temperature applications where traditional metal washers fail. The light green fiberglass construction provides excellent dielectric strength, preventing short circuits in electrical assemblies and control panels. Its Rockwell M100 hardness ensures dimensional stability under compression, while the precise 0.125" ID x 0.438" OD dimensions guarantee proper seating for No. 4 screws. Engineers specify this washer for industrial equipment, aerospace components, and power distribution systems where temperature fluctuations and electrical safety are paramount concerns. The MIL-I-24768/27 compliance validates its performance in mission-critical applications requiring reliable thermal management and electrical isolation.

Specification Summary & Compliance

This flat washer features precise inch system dimensions: 0.125" inner diameter, 0.438" outer diameter, and 0.054-0.070" thickness range. Manufactured from fiberglass with Rockwell M100 hardness, it complies with MIL-I-24768/27 military specifications for material and performance requirements. The product meets RoHS 3 (2015/863/EU) compliance for hazardous substance restrictions and REACH (EC 1907/2006) regulations for chemical safety, with verification against 235 SVHCs as of June 14, 2023. Maximum service temperature rating of 280°F ensures reliability in thermal applications.