S-92150A222 0.29" ID x 0.89" OD MS51859-18 Mil. Spec. Plastic Washers
Mil. Spec. Plastic Washers
Image may differ from product. See technical specification for details.
Basic Information
Dimension Parameters
Material & Strength Parameters
Temperature & Environment Parameters
Installation & Application Parameters
Finish & Compliance Parameters
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Superior electrical insulation prevents current leakage and short circuits in sensitive electronic assemblies
- Excellent corrosion resistance maintains performance in humid or chemically aggressive environments without rusting
- Precise dimensional control ensures consistent fit and uniform load distribution for 1/4" fasteners
- Lightweight nylon construction reduces overall assembly weight while providing durable protection
- Wide temperature tolerance performs reliably in applications up to 180°F without deformation
- REACH compliance guarantees safe use without hazardous substances across industrial sectors
- MS51859-18 specification delivers certified quality and interchangeability for military and aerospace applications
Professional Applications & Engineering Value
This nylon flat washer solves critical engineering challenges where metal washers fail. The white nylon plastic material provides essential electrical insulation in control panels, electronic enclosures, and communication equipment, eliminating galvanic corrosion between dissimilar metals. With its 0.29" ID and 0.89" OD dimensions, it creates reliable sealing surfaces for 1/4" screw applications while resisting fuels, solvents, and moisture. The MS51859-18 compliance ensures these flat washers meet rigorous aerospace and defense standards, making them ideal for OEM assemblies requiring non-conductive, lightweight components that maintain integrity across temperature variations.
Specification Summary & Compliance
This flat washer maintains precise dimensional tolerances with 0.29" inner diameter, 0.89" outer diameter, and 0.025-0.035" thickness range. Manufactured to MS51859-18 specification for consistent quality and performance. Compliant with REACH (EC 1907/2006) regulations regarding substance restrictions. Suitable for continuous service in temperatures up to 180°F. Designed specifically for use with 1/4" screws in inch measurement system applications.
