Part 9821503 is a replacement lock washer used in various assembly points across a wide range of compatible spray equipment. This washer prevents fastener loosening from vibration by providing spring tension between the nut and mounting surface. When the original lock washer becomes flattened, corroded, or lost, replacement restores vibration resistance and prevents component loosening.
| Part Number | 9821503 |
|---|---|
| Part Description | Lock Washer |
| Brand | Universal |
| Fits | Advantage 700; Advantage 1100; Advantage GPX 220; Aircoat 423 GB_D_F; Helix FR; Helix LP; Helix VR; Iimpact 840 I and IA; impact 740; Impact 740-840; Impact 840 service; impact 1040; impact 1140 I and IA; Impact 1140 service; Power coat 630 GB_D_F; PowrDriver1; PowrLiner 4950; PowrLiner 6950; PowrLiner 6950_1; PowrTwin 4900 , 6900 , 8900, 12000 Plus; PowrTwin 6900 , 12000 Plus DI; PowrTwin 12000 Plus DI service; SprayTech Airless Advantage EPX2555; SprayTech CS 55; SprayTech CS5100; SprayTech HVLP CS10000 |
| Condition | New |
The 9821503 lock washer is a direct replacement fastener component used across an extensive range of spray equipment including Advantage, Aircoat, Helix, Impact, Power coat, PowrDriver, PowrLiner, PowrTwin, and SprayTech models. This split-ring lock washer provides spring tension between the nut and mounting surface, preventing fasteners from loosening due to machine vibration. It is used in engine mounts, pump assemblies, handlebar attachments, cover plates, and numerous other locations. A flattened, corroded, or missing lock washer can allow fasteners to back out, leading to component loosening, misalignment, and potential damage. Manufactured from spring steel with appropriate temper, this replacement washer restores proper locking action. The split design compresses under load, maintaining tension as components settle. Regular inspection during maintenance helps identify washers that have taken a set and lost their spring characteristics.
| Vibration resistance | Prevents nuts from loosening due to machine vibration |
|---|---|
| Spring tension | Maintains clamping force as components settle |
| Fastener retention | Keeps assembled components securely fastened |
| Flattened / compressed | Washer no longer provides spring tension |
|---|---|
| Corrosion damage | Rust has weakened or compromised washer |
| Missing washer | Washer lost during disassembly or operation |
| Broken / cracked | Split ring has fractured |
Lock washer 9821503 is compatible with the following models. Verify fit using your equipment's parts diagram.
| Compatible Models |
|---|
| Advantage 700; Advantage 1100; Advantage GPX 220 |
| Aircoat 423 GB_D_F |
| Helix FR; Helix LP; Helix VR |
| Iimpact 840 I and IA; impact 740; Impact 740-840; Impact 840 service; impact 1040; impact 1140 I and IA; Impact 1140 service |
| Power coat 630 GB_D_F |
| PowrDriver1 |
| PowrLiner 4950; PowrLiner 6950; PowrLiner 6950_1 |
| PowrTwin 4900, 6900, 8900, 12000 Plus; PowrTwin 6900, 12000 Plus DI; PowrTwin 12000 Plus DI service |
| SprayTech Airless Advantage EPX2555; SprayTech CS 55; SprayTech CS5100; SprayTech HVLP CS10000 |
When replacing lock washers, inspect these associated components to ensure proper fastening.
Check threads for damage; replace if worn.
Inspect for deformation; replace as needed.
Ensure surface is clean and not damaged.
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