S-95610A106 4.9 mm ID x 12 mm OD DIN 7349 Plastic Washers

Key Features & Benefits at a Glance

• Excellent corrosion resistance due to nylon construction, eliminating rust in humid or chemical environments
• Reliable electrical insulation properties for safe use in electrical assemblies and sensitive equipment
• Superior vibration dampening to maintain joint integrity and prevent screw loosening under dynamic loads
• Wide operating temperature range from -40°F to 220°F, ensuring performance stability in extreme conditions
• Consistent dimensional accuracy with 4.9mm ID and 12mm OD per DIN 7349 for precise M4 screw fitment
• High durability with Rockwell R120 hardness, providing excellent wear resistance and long service life
• Full regulatory compliance with RoHS 3 and REACH, meeting international environmental and safety standards

Professional Applications & Engineering Value

This nylon flat washer delivers critical engineering solutions where metal fasteners fail. Its non-conductive properties make it ideal for electrical enclosures, control panels, and automotive electronics, preventing short circuits. The off-white nylon material resists chemicals, oils, and UV degradation, maintaining integrity in outdoor or industrial settings. With precise M4 metric sizing and DIN 7349 certification, it ensures perfect alignment and load distribution, eliminating assembly gaps. The temperature-resistant formulation withstands thermal cycling from freezer applications to engine compartments, while the Rockwell R120 hardness prevents deformation under high clamp loads. These features combine to reduce maintenance intervals and enhance product lifespan in demanding industrial washers applications.

Specification Summary & Compliance

This flat washer features metric dimensions with 4.9mm inner diameter, 12mm outer diameter, and 1.4-1.6mm thickness, engineered for M4 screw size applications. Manufactured to DIN 7349 standard for dimensional precision and performance consistency. The washer is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and restricted substance adherence. Material hardness is certified at Rockwell R120 for reliable mechanical performance across the specified operating range.