S-90443A130 6.1 mm ID x 13.1 mm OD FDA Compliant 21 CFR 177.2600; 3-A Certified 18-03; NSF/ANSI 51 Sanitary Bonded Sealing Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh washdown environments and extending equipment lifespan
• Reliable sealing performance provided by EPDM rubber (Durometer 70A), preventing fluid ingress and contamination in sensitive applications
• Broad temperature tolerance from -40°F to 300°F, ensuring consistent performance in both freezing and high-heat processing conditions
• Direct compliance with major sanitary standards including FDA 21 CFR 177.2600, 3-A 18-03, and NSF/ANSI 51 for use in food and beverage processing
• Precise M6 screw fit with 6.1mm ID and 13.1mm OD for secure fastening and vibration resistance in machinery assemblies
• Enhanced safety and environmental compliance through RoHS 3 and REACH adherence, supporting global supply chain requirements
• Durable metal-bonded design that maintains seal integrity under pressure, reducing maintenance frequency and downtime

Professional Applications & Engineering Value

This metal-bonded washer combines a 316 stainless steel body with an EPDM rubber seal to address critical challenges in sanitary and food industry applications. The stainless steel provides excellent resistance to corrosive cleaning agents and oxidation, while the black EPDM seal (Durometer 70A) offers reliable compression and recovery to prevent leakage at connection points. Engineered for M6 screw installations, it ensures a tight seal around pipes, valves, and equipment housings where hygiene is paramount. The temperature-resistant properties allow deployment in environments ranging from freezer storage to hot liquid processing lines, maintaining seal integrity and preventing bacterial harborage points in compliance with FDA, 3-A, and NSF/ANSI 51 protocols for food contact surfaces.

Specification Summary & Compliance

This metric M6 washer features precise dimensions (ID: 6.1mm, OD: 13.1mm, Thickness: 1mm) suitable for standard metric fastener systems. It conforms to FDA 21 CFR 177.2600 for food contact, 3-A Sanitary Standard 18-03 for dairy equipment, and NSF/ANSI 51 for food equipment materials. The product is verified RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant regarding substance restrictions, ensuring full regulatory adherence for industrial and sanitary use.