S-90295A410 0.177" ID x 0.408" OD Plastic Washers

Key Features & Benefits at a Glance

• Exceptional temperature resilience for stable performance in environments ranging from -40°F to 180°F, preventing deformation and maintaining seal integrity under thermal stress.
• Superior electrical insulation properties to safely isolate components and prevent short circuits in electrical assemblies.
• High corrosion and chemical resistance due to nylon construction, ensuring long service life without degradation in harsh conditions.
• Reliable load distribution and vibration dampening with Rockwell R115 hardness, protecting fastened surfaces and reducing loosening.
• Precision dimensional fit for No. 8 screws with 0.177" ID and 0.408" OD, ensuring easy installation and consistent alignment.
• Full compliance with RoHS 3 and REACH regulations for safe, environmentally responsible use in global markets.
• Lightweight and non-magnetic design ideal for applications where weight savings and magnetic interference are concerns.

Professional Applications & Engineering Value

Engineered for demanding industrial settings, this Nylon Plastic Flat Washer addresses common challenges like galvanic corrosion, electrical conductivity, and thermal expansion. Its nylon material provides inherent corrosion resistance, eliminating the need for additional coatings and reducing maintenance in outdoor or chemical-exposed environments. The electrically insulating properties make it a top choice for electrical enclosures, control panels, and automotive electronics, where it prevents current leakage and enhances safety. With a temperature range of -40°F to 180°F, it remains functional in both freezing and moderately high-heat conditions, ensuring reliable performance in HVAC, machinery, and consumer appliances. The precise 0.177" ID and 0.408" OD dimensions, tailored for No. 8 screws, offer a secure fit that minimizes play and distributes clamping force evenly, protecting sensitive components from damage.

Specification Summary & Compliance

This flat washer conforms to standard inch system measurements with an inner diameter of 0.177", outer diameter of 0.408", and thickness between 0.055" and 0.070". It is manufactured from nylon plastic with a hardness of Rockwell R115, ensuring consistent quality and durability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free of restricted hazardous substances and safe for industrial use.