S-95610A150 4.3 mm ID x 9 mm OD Plastic Washers

Key Features & Benefits at a Glance

• Excellent corrosion resistance with durable Nylon Plastic construction, ideal for harsh environments where metal washers may fail
• Reliable electrical insulation properties to prevent current leakage and short circuits in electrical assemblies
• Broad temperature tolerance from -40°F to 180°F for stable performance in varying operational conditions
• Precise M4 screw compatibility with 4.3mm ID and 9mm OD ensuring secure fit and even load distribution
• Enhanced durability with Rockwell R120 hardness for long-lasting wear resistance under repeated use
• Environmental compliance with RoHS 3 and REACH standards, safe for regulated industrial and commercial applications
• Lightweight and non-marring design protects sensitive surfaces from scratches and damage

Professional Applications & Engineering Value

This M4 nylon flat washer is engineered to address common industrial challenges like galvanic corrosion, electrical isolation, and weight reduction. Made from high-grade Nylon Plastic, it provides consistent performance in electrical enclosures, automotive components, and food processing equipment where non-conductive, non-corrosive fasteners are critical. The off-white color and smooth surface finish allow for easy inspection and compatibility with cleanroom standards. Its metric dimensions (4.3mm ID × 9mm OD) and temperature resistance ensure reliable sealing and spacing in M4 screw assemblies, reducing maintenance needs and enhancing product lifespan in demanding settings.

Specification Summary & Compliance

This flat washer adheres to metric system standards with precise inner diameter of 4.3mm, outer diameter of 9mm, and thickness ranging from 0.6–1.0 mm. It is manufactured to meet Rockwell R120 hardness for consistent mechanical properties and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances for safe industrial and commercial use.