S-99186A132 4.3 mm ID x 9 mm OD FDA Compliant 21 CFR 177.2600 Rubber Sealing Washers

Key Features & Benefits at a Glance

• Food-grade safety with FDA 21 CFR 177.2600 compliance for direct contact in food processing environments
• Excellent temperature resilience maintaining performance across extreme conditions from -50°F to 300°F
• Optimal sealing performance with Durometer 60A hardness providing reliable compression and vibration resistance
• Precision M4 compatibility with 4.3mm ID and 9mm OD dimensions ensuring perfect fit for metric fastening systems
• Environmental compliance assurance meeting RoHS 3 and REACH standards for hazardous substance restrictions
• Durable EPDM construction offering superior resistance to weathering, oxidation, and industrial cleaning agents
• Consistent thickness control between 1.190mm-1.950mm for uniform pressure distribution in assembly applications

Professional Applications & Engineering Value

These EPDM rubber flat washers deliver critical sealing solutions where food-grade compliance and thermal stability are paramount. The FDA 21 CFR 177.2600 compliant material ensures safe operation in food processing equipment, commercial appliances, and packaging machinery where direct contact with consumables occurs. Engineered with Durometer 60A hardness, these metric washers provide ideal compression recovery for M4 screw applications, preventing leakage and maintaining seal integrity under repeated thermal cycling. The white EPDM rubber construction resists degradation from steam cleaning, food acids, and industrial sanitizers, making these flat washers essential components for food industry maintenance, beverage processing systems, and pharmaceutical equipment where hygiene and reliability are non-negotiable.

Specification Summary & Compliance

This food grade washer features precise dimensional specifications with 4.3mm inner diameter and 9mm outer diameter, designed specifically for M4 screw applications. The thickness tolerance range of 1.190mm-1.950mm ensures consistent performance across production batches. Compliance certifications include FDA 21 CFR 177.2600 for food contact applications, RoHS 3 (2015/863/EU) compliance for hazardous substance restrictions, and REACH (EC 1907/2006) adherence for chemical safety. The EPDM rubber material maintains its sealing properties throughout the specified temperature range of -50°F to 300°F, making it suitable for both freezing and moderate heat processing environments.