Round Plate Washer

This precision-machined Round Plate Washer is designed for applications that demand stable support, accurate alignment, and consistent spacing. As a precision aluminum washer, it is manufactured with tight geometric control and a durable anodized finish, ensuring reliable performance in mechanical, electronic, and structural assemblies.

Outer Diameter: 2.868 in
(Tolerance: +0.005 / –0.000)

Inner Hole Diameter: 0.255 in
(Tolerance: +0.003 / –0.000)

Thickness: 0.102 in

Flatness: Must be within 0.002 T.I.R.

Concentricity: Hole and OD concentric within 0.0025 T.I.R.

Surface Treatment: Anodize per MIL-A-8625 Type II

Every washer is produced under controlled machining processes to achieve stable flatness and consistent load-bearing performance. The smooth face and uniform thickness provide the support required for precise assembly conditions.

Made from high-quality aluminum, this machined flat washer goes through a Type II anodizing process compliant with MIL-A-8625. The coating improves wear resistance, enhances surface durability, and provides an additional level of corrosion protection.

The refined surface minimizes friction and ensures proper seating, which is especially important in precision equipment and assemblies.

1. Precise, Repeatable Geometry

With controlled flatness and concentricity, the Round Plate Washer supports applications where stable alignment is essential, such as in fixtures or precision mechanical setups.

2. Reliable Load Distribution

Its uniform thickness ensures even stress transfer between fasteners and structural components, promoting long-term assembly integrity.

3. Durable Anodized Protection

The Type II anodized layer increases service life and reduces surface wear, making the washer suitable for environments where durability matters.

Mechanical and structural assemblies

Electromechanical mounting plates

Precision fixtures and jigs

Custom OEM hardware

Custom CNC aluminum components for industrial equipment

This Round Plate Washer provides dependable performance wherever both dimensional accuracy and surface durability are critical.