S-90295A223 0.469" ID x 0.875" OD ASME B18.22.1 Plastic Washers

Key Features & Benefits at a Glance

• Exceptional temperature resistance from -40°F to 300°F ensures reliable performance in extreme industrial environments
• Superior electrical insulation properties of nylon plastic prevent electrical conductivity and corrosion in sensitive applications
• Rockwell R115 hardness provides excellent durability and resistance to wear under repeated loading conditions
• Precise dimensional accuracy with 7/16" screw size compatibility and 0.875" outer diameter ensures perfect fit and consistent performance
• Full regulatory compliance with RoHS 3 and REACH standards guarantees environmental safety and global market acceptance
• ASME B18.22.1 specification compliance ensures interchangeability and reliability in demanding mechanical assemblies
• Lightweight nylon construction reduces overall assembly weight while maintaining structural integrity

Professional Applications & Engineering Value

These nylon plastic flat washers deliver critical engineering solutions where metal fasteners fall short. The green nylon material provides excellent chemical resistance against oils, solvents, and most chemicals, making them ideal for automotive, electrical, and marine applications. Their non-conductive properties prevent galvanic corrosion and electrical shorts in electronic assemblies, while the temperature resistance from -40°F to 300°F ensures dimensional stability across extreme operating conditions. The 0.469" ID and 0.875" OD dimensions maintain precise load distribution for 7/16" fasteners, preventing surface damage and maintaining joint integrity in vibration-prone environments. These ASME B18.22.1 compliant washers offer reliable performance in electrical insulation, corrosion prevention, and weight-sensitive industrial applications.

Specification Summary & Compliance

This flat washer features precise dimensional specifications including 0.469" inner diameter, 0.875" outer diameter, and thickness ranging from 0.056" to 0.071". Manufactured to ASME B18.22.1 standards for dimensional accuracy and performance reliability. The washer demonstrates full compliance with RoHS 3 (2015/863/EU) regulations and REACH (EC 1907/2006) requirements, ensuring environmental safety and regulatory acceptance. The inch system measurement guarantees compatibility with standard imperial fastener systems, while the Rockwell R115 hardness specification confirms consistent material properties across production batches.