9P-8217 1.7 mm Thick Control Valve Hard Washer
Cat® hydraulic control valve hard washers seal valves in hydraulic systems, preventing leakage and ensuring precise operation
Description
Cat® fastener parts are designed for specific applications based on size, strength, clamp load and past performance, information other manufacturers do not have. They are carefully selected to last until machine rebuild or end of life. Non-Cat hardware and fasteners may appear to fit your machine, but no one else knows your equipment the way we do.
Features
- Cat fasteners are manufactured to precise specifications for durability, reliability and high efficiency
- Strength and Quality – Fasteners meet or exceed ISO, ASTM, ASME and SAE requirements.
- Cat bolts, nuts and washers are specifically designed to work together as a system to maximize clamping force.
- Coating meets the special requirements of different applications (RoHS compliant).
Applications
Cat bolts form a high-performance system with mating washers and nuts to produce consistent, high clamping force. You can rely on Cat fasteners to help you build, maintain or rebuild – for most machine and shop applications around the world.
Specifications
| Inside Diameter | 9.9 mm (0.39 in) |
|---|---|
| Outside Diameter | 14.9 mm (0.587 in) |
| Thickness | 1.7 mm (0.067 in) |
| Fits Bolt Size | M8 mm (5/16 in) |
| Coating | Zinc phosphate + oil provides corrosion protection up to the point of assembly (painting is recommended for exterior applications). Salt spray resistance: 72 hours with no red rust. Coating color – dark gray to black. |
| Material | Hardened Steel |
| Gasket Type | Flat Washer |
Compatible Equipment
- Engines: C32, C27
- Dozers: D6G, D6G2 XL, D6G2 LGP, D10R
- Off-Highway Trucks: 777, 773E, 770G, 777D, 773F, 775G, 772G, 773D, 771D, 785D, 777E, 773, 785
- Asphalt Pavers: AD45, AD63








