Product description

The Snap-On D12 piston washer (reference 1-10241) is a precision-engineered flat washer designed to distribute load and provide a smooth bearing surface for high-pressure components. With a 12mm internal diameter, this washer is specifically sized for use in hydraulic cylinders, pneumatic pistons, or engine assemblies where consistent pressure distribution is required to prevent seal failure or component wear. Its flat profile and uniform thickness ensure that clamping forces are applied evenly across the mating surfaces, reducing the likelihood of stress concentrations that can lead to cracks or leaks. Manufactured to meet the exacting standards of the original equipment, this washer is a critical part for any technician performing overhaul or maintenance on precision machinery. Its durable material composition ensures long-lasting performance even in harsh operating conditions.

Product highlights

• Precision flat washer with a 12mm (D12) internal diameter for exact fitment.
• Designed for use in piston assemblies, hydraulic systems, and engines.
• Distributes clamping force evenly to protect mating surfaces from damage.
• Corresponds to OEM reference 1-10241 for seamless part replacement.
• Constructed from high-strength materials to resist compression and wear.

Specs

• Size: 12mm (D12)
• OEM Reference: 1-10241
• Manufacturer: Snap-On
• Manufacturer Part Number: ST7021072

Direct replacement models

Snap-On ST7021072, 1-10241

You will receive the same product or an OEM-Equivalent that meets the highest standard of the OEM with warranty that will be a direct-fit. Manufactured with rigorous industry standards and certified in the USA with superior quality to the OEM.