S-90133A220 0.29" ID x 0.562" OD FDA Compliant 21 CFR 177.2600 Rubber Sealing Washers

Key Features & Benefits at a Glance

• FDA-compliant neoprene rubber construction ensures safe, non-contaminating performance in food processing and packaging environments
• Precision 0.29" ID and 0.562" OD dimensions provide perfect fit and consistent sealing for 5/16" fasteners
• Durometer 55A hardness rating delivers optimal compression resistance while maintaining flexible sealing capabilities
• Broad temperature tolerance (-30°F to 220°F) maintains performance integrity across food processing, refrigeration, and sanitation cycles
• Comprehensive regulatory compliance including FDA 21 CFR 177.2600, RoHS 3, and REACH for global food industry applications
• 0.062" thickness specification ensures reliable load distribution without compromising assembly space requirements
• White color and food-grade material support hygiene monitoring and cleanliness standards in sensitive applications

Professional Applications & Engineering Value

These neoprene rubber flat washers are engineered specifically for the demanding requirements of food industry applications, where material safety and performance consistency are critical. The FDA-compliant neoprene material provides excellent resistance to oils, greases, and cleaning chemicals commonly encountered in food processing equipment. With their Durometer 55A hardness, these washers offer the ideal balance between compression resistance and sealing capability, preventing leakage while maintaining fastener tension. The precise 0.29" ID and 0.562" OD dimensions ensure proper fitment on 5/16" screw sizes, eliminating installation issues and providing consistent performance across assembly lines. The temperature resistance from -30°F to 220°F makes them suitable for applications ranging from refrigeration units to hot food processing equipment, ensuring reliability through thermal cycling and sanitation procedures.

Specification Summary & Compliance

This flat washer features inch system measurements with 0.29" inner diameter, 0.562" outer diameter, and 0.062" thickness, specifically designed for 5/16" screw sizes. The manufacturing complies with FDA 21 CFR 177.2600 for food contact applications, RoHS 3 (2015/863/EU) for hazardous substance restrictions, and REACH (EC 1907/2006) for chemical safety. The neoprene rubber material with Durometer 55A hardness provides consistent performance within the specified temperature range of -30°F to 220°F, meeting the rigorous demands of food industry environments.