S-90295A253 0.348" ID x 1.25" OD ASME B18.22.1 Plastic Washers

Key Features & Benefits at a Glance

• Exceptional temperature resistance from -40°F to 300°F for reliable performance in extreme industrial environments
• Superior corrosion and chemical resistance thanks to durable Nylon Plastic construction, ideal for harsh operating conditions
• Precise dimensional fit with 0.348" ID and 1.25" OD ensuring secure seating for 5/16" screws and uniform load distribution
• Enhanced durability and wear resistance provided by Rockwell R115 hardness, extending service life in high-vibration applications
• Compliance with ASME B18.22.1 standards guarantees consistent quality, dimensional accuracy, and interchangeability
• RoHS 3 and REACH compliance ensures environmental safety and meets global regulatory requirements for industrial use
• Vibration damping and electrical insulation properties of nylon protect assemblies and reduce noise in mechanical systems

Professional Applications & Engineering Value

This 5/16" Nylon Flat Washer is engineered to solve critical challenges in industrial fastening, where metal washers may fail due to corrosion, electrical conductivity, or temperature extremes. The Nylon Plastic material provides excellent insulation and resistance to chemicals, oils, and moisture, making it ideal for electrical enclosures, automotive assemblies, and outdoor equipment. Its flat washer design ensures even load distribution, preventing surface damage and loosening under vibration. With a temperature range of -40°F to 300°F, it performs reliably in both freezing and high-heat environments, such as HVAC systems, machinery, and marine applications. The green color aids in part identification and inventory management, streamlining procurement and assembly processes for B2B buyers.

Specification Summary & Compliance

This washer features precise dimensions: 0.348" ID x 1.25" OD with a thickness range of 0.047-0.080", designed for 5/16" screw sizes in the inch system. It conforms to ASME B18.22.1 standards for dimensional consistency and performance. The product is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, adhering to environmental and safety regulations for industrial components.