S-90133A622 21 mm ID x 37 mm OD FDA Compliant 21 CFR 177.2600 Rubber Sealing Washers

Key Features & Benefits at a Glance

• Food-Safe Material Compliance - FDA 21 CFR 177.2600 compliant neoprene rubber ensures safe contact with food products, eliminating contamination risks in processing environments
• Exceptional Temperature Resilience - Maintains sealing integrity across wide temperature range from -30°F to 220°F, preventing failure in both freezing and heating applications
• Precision M20 Fitment - 21mm ID provides secure seating on M20 fasteners while 37mm OD delivers optimal load distribution and surface protection
• Consistent Performance Hardness - Durometer 55A rating offers ideal balance of flexibility and compression resistance for reliable, long-lasting seals
• Environmental Regulation Compliance - RoHS 3 and REACH compliant construction meets strict international standards for hazardous substance restrictions
• Durable Chemical Resistance - Neoprene material withstands exposure to oils, greases, and mild chemicals common in food processing operations
• Precision Thickness Control - 1.168mm-1.981mm thickness range ensures consistent compression and reliable sealing performance in assembly applications

Professional Applications & Engineering Value

These metric flat washers address critical sealing challenges in food industry applications where material safety and temperature stability are paramount. The neoprene rubber construction provides essential resistance to food-grade lubricants, cleaning agents, and moisture while maintaining flexibility across extreme temperature cycles. Engineered with precision 21mm ID and 37mm OD dimensions, these washers create reliable barriers that prevent leakage and protect equipment surfaces in food processing machinery, commercial kitchen equipment, and packaging systems. The Durometer 55A hardness ensures optimal compression without permanent deformation, delivering consistent performance in bolted connections subject to vibration and thermal expansion. This combination of FDA compliance and mechanical reliability makes them ideal for sealing applications around mixers, conveyors, and processing vessels where both regulatory compliance and operational durability are required.

Specification Summary & Compliance

These metric flat washers feature precise dimensional specifications with 21mm internal diameter, 37mm outer diameter, and thickness ranging from 1.168mm to 1.981mm for M20 fasteners. Manufactured from neoprene rubber with Durometer 55A hardness, the washers comply with FDA 21 CFR 177.2600 for food contact applications. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations ensures adherence to international hazardous substance restrictions, while the temperature rating of -30°F to 220°F confirms suitability for diverse industrial environments.