S-90443A120 5.1 mm ID x 10.7 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 and chemical exposure in food processing environments.
• Reliable sealing performance provided by the bonded EPDM rubber (Durometer 70A), preventing fluid and contaminant ingress for M5 fasteners.
• Broad temperature tolerance from -40°F to 300°F, ensuring seal integrity and metal performance in both freezing and hot sanitizing conditions.
• Full regulatory compliance including FDA 21 CFR 177.2600, 3-A 18-03, and NSF/ANSI 51, guaranteeing safety for direct and indirect food contact applications.
• Enhanced durability in sanitary applications due to the metal-bonded design, resisting dislodgement during high-pressure cleaning cycles.
• Global environmental compliance with RoHS 3 and REACH, ensuring the washer is free from hazardous substances for safe industrial use.
• Precise metric sizing (5.1mm ID, 10.7mm OD, 1mm Thickness) for consistent fit and optimal load distribution on M5 screws.

Professional Applications & Engineering Value

This M5 316 stainless steel EPDM sealed washer is engineered to solve critical challenges in sanitary and food industry applications. The combination of 316 stainless steel, known for its exceptional pitting and crevice corrosion resistance, with a bonded EPDM rubber seal creates a robust barrier against moisture, microbes, and cleaning agents. This design directly addresses the industry's need for components that can withstand aggressive chemical cleaners and frequent high-temperature steam sterilization without degrading. The metal-bonded system ensures the seal remains securely in place, preventing failure points in equipment like food processing machinery, bottling lines, and pharmaceutical mixers. By integrating these food-grade materials and certified designs, engineers can significantly reduce downtime for maintenance and prevent costly contamination events, delivering long-term operational reliability.

Specification Summary & Compliance

This metric washer features precise dimensions with an ID of 5.1mm, OD of 10.7mm, and Thickness of 1mm, designed for M5 screw sizes. It is manufactured to meet stringent industry standards, including FDA Compliant 21 CFR 177.2600, 3-A Certified 18-03, and NSF/ANSI 51 for sanitary applications. The product is also verified as RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, ensuring adherence to global environmental and safety regulations for hazardous substances.