S-90443A140 8.1 mm ID x 16.9 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 service life
• Reliable sealing performance from the EPDM rubber seal (Durometer 70A), preventing fluid and contaminant ingress in critical applications
• Broad temperature tolerance from -40°F to 300°F, ensuring consistent performance in both freezing and hot processing conditions
• Compliance with major food safety standards including FDA 21 CFR 177.2600, 3-A 18-03, and NSF/ANSI 51 for use in sanitary processing
• Precise M8 metric sizing with 8.1mm ID and 16.9mm OD for accurate fit and secure fastening in equipment assemblies
• Environmental regulation adherence with RoHS 3 and REACH compliance, supporting global supply chain requirements
• Durable metal-bonded design providing a robust, integrated seal that resists dislodgement during vibration or maintenance

Professional Applications & Engineering Value

This M8 316 stainless steel EPDM sealed washer is engineered to address critical challenges in food industry and sanitary applications. The metal-bonded construction combines the strength of 316 stainless steel with the flexibility of an EPDM rubber seal, creating a reliable barrier against moisture, chemicals, and microbial ingress. This design prevents leakage at fastener points in processing equipment, conveyor systems, and mixing tanks, reducing downtime and contamination risks. The black EPDM seal offers excellent resistance to steam, cleaning agents, and temperature fluctuations, ensuring long-term integrity in environments requiring frequent sterilization. By integrating a food grade seal directly onto a corrosion-resistant washer, this component simplifies assembly, enhances hygiene, and supports compliance in regulated facilities, delivering measurable value in maintenance efficiency and product safety.

Specification Summary & Compliance

This washer features precise metric dimensions with an ID of 8.1 mm, OD of 16.9 mm, and 1 mm thickness, designed for M8 screw size applications. It conforms to stringent industry standards including FDA Compliant 21 CFR 177.2600, 3-A Certified 18-03, and NSF/ANSI 51 for food contact and sanitary use. The product is verified to be RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, ensuring adherence to environmental and safety regulations for hazardous substances.