S-90443A220 8.1 mm ID x 16.9 mm OD FDA Compliant 21 CFR 177.2600 Sanitary Bonded Sealing Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh, washdown environments in food processing.
• Reliable sealing performance provided by the bonded blue fluoroprene fluoroelastomer seal, preventing fluid and contaminant ingress.
• Certified for food safety, complying with FDA 21 CFR 177.2600, ensuring material suitability for direct and indirect food contact.
• Broad temperature tolerance from 5°F to 390°F, maintaining seal integrity and metal properties in fluctuating thermal conditions.
• Durable, flexible seal with a Durometer 75A hardness, offering an optimal balance of compression and long-term wear resistance.
• Precise M8 metric fit with an 8.1mm ID and 16.9mm OD for accurate installation and consistent performance on standard fasteners.
• Environmental and regulatory compliance with RoHS 3 and REACH, supporting sustainable and safe manufacturing practices.

Professional Applications & Engineering Value

This M8 metal bonded washer is engineered to solve critical challenges in sanitary and food industry applications. The core 316 stainless steel body provides exceptional resistance to corrosion from cleaning agents and food acids, while the permanently bonded fluoroprene fluoroelastomer seal (color-coded blue for easy identification) ensures a leak-proof barrier against moisture, grease, and airborne contaminants. This combination directly addresses the need for durable, corrosion-resistant sealing solutions that can withstand repeated sterilization cycles and extreme temperature variations from refrigeration to hot washdowns, thereby reducing maintenance downtime and preventing product contamination in processing equipment, conveyor systems, and packaging machinery.

Specification Summary & Compliance

This metric washer is manufactured to precise dimensional specifications: 8.1mm Inner Diameter (ID), 16.9mm Outer Diameter (OD), and 1mm Thickness, designed for an M8 screw size. The seal material is specified as Fluoroprene Fluoroelastomer Rubber with a Durometer 75A hardness. The product is verified to meet FDA compliance under 21 CFR 177.2600 for food contact. It is also confirmed to be RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, adhering to strict environmental and substance restrictions.