S-92150A109 0.64" ID x 1.188" OD NAS1515-H10 Mil. Spec. Plastic Washers

Key Features & Benefits at a Glance

• Excellent Electrical Insulation: Made from durable nylon plastic, this washer provides reliable non-conductive properties, protecting equipment from electrical shorts and enhancing safety in electrical assemblies.
• Superior Corrosion & Chemical Resistance: The inherent properties of nylon offer excellent resistance to moisture, fuels, and many chemicals, ensuring long-term performance without rust or degradation in harsh environments.
li>Precision Fit for 5/8" Screws: With an exact 0.64" inner diameter, this washer ensures a secure and centered fit, preventing misalignment and distributing load evenly for improved joint integrity.
• Wide Load Distribution Surface: The 1.188" outer diameter provides a larger bearing surface, effectively reducing surface pressure and preventing damage to soft materials or finishes.
• Compliance with Rigorous Aerospace Standards: Manufactured to meet NAS1515-H10 specifications, guaranteeing consistent quality, dimensional accuracy, and reliability for demanding industrial and aerospace applications.
• Lightweight & Vibration Dampening: The nylon material reduces overall assembly weight and absorbs vibrations, minimizing the risk of fastener loosening and noise in dynamic systems.
• Broad Regulatory Compliance: Conforms to RoHS 3 and REACH environmental directives, ensuring the washer is free from hazardous substances and suitable for use in regulated markets worldwide.

Professional Applications & Engineering Value

This nylon flat washer is engineered to solve common industrial challenges where metal fasteners fall short. Its white nylon plastic construction provides essential electrical insulation, making it ideal for electrical enclosures, control panels, and electronic assemblies to prevent current leakage and short circuits. The material's natural corrosion resistance eliminates the risk of galvanic corrosion when used with dissimilar metals, a critical advantage in marine, chemical processing, and outdoor equipment. The precise 0.64" ID and 1.188" OD ensure a perfect fit for 5/8" screws, maintaining alignment under load and protecting sensitive surfaces from indentation. Complying with the NAS1515-H10 standard, this washer delivers the dimensional consistency and reliability required in aerospace, automotive, and machinery applications, offering a lightweight, non-magnetic, and durable sealing solution that performs consistently up to 180°F.

Specification Summary & Compliance

This flat washer is manufactured to precise inch system dimensions: Inner Diameter of 0.64", Outer Diameter of 1.188", and a Thickness ranging from 0.053" to 0.073". It is designed for use with 5/8" screws and conforms to the NAS1515-H10 specification, ensuring high-quality standards for aerospace and industrial use. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant (as of 06/14/2023, 235 SVHC), confirming it is free from hazardous substances. It is rated for a maximum service temperature of 180°F.