Graco 101533 Spring Lock Washer
$9.10
In Stock
The Graco 101533 Spring Lock Washer is a genuine OEM fastener designed to prevent loosening under vibration, ensuring reliable performance in Graco sprayers and ram assemblies.
- Part Number: 101533
- Type: Spring Lock Washer (7/8")
- Used In: Ram units, Supply systems, HydraMax sprayers
- Function: Prevents fastener loosening under vibration
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Genuine OEM Part
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Compatible Machines — 101533 Spring Lock Washer
- Graco Supply Units / Ram Assemblies — various single/dual-post ram bases and tie-rod assemblies
- Graco General Industry Supply Systems — ram base/mounting locations calling for a spring lock washer
- Graco Air-Powered Ram (3" with integrated air controls) — tie-rod and frame fastener stacks
- Graco HydraMax Sprayers — HydraMax 225, HydraMax 300, HydraMax 350
- Graco 1:1 Extruder — fastener locations requiring lock retention under vibration
Part Overview
The Graco 101533 Spring Lock Washer is a genuine OEM lock washer used to prevent loosening of nuts/bolts in high-vibration assemblies. It is commonly found in ram units, supply systems, select HydraMax sprayers, and 1:1 extruders.
Key Specs
| Part Number | 101533 |
|---|---|
| Type | Spring Lock Washer (lock-retaining washer) |
| Nominal Size | 7/8 in (as referenced in multiple Graco ram/supply system parts lists) |
| Category | Fastener hardware — vibration resistance |
| OEM | Genuine Graco replacement component |
Common Uses
- Securing frame/tie-rod stacks on ram assemblies
- Fastener retention on supply systems and extruders
- High-vibration locations on HydraMax sprayers
Install & Service Notes
- Place the spring lock washer under the nut/bolt head with full, flat seating before torquing.
- Follow the specific model’s service manual for torque values and stack order (washer orientation matters).
- Replace any visibly flattened, cracked, or corroded lock washer during service.
Frequently Asked Questions
It is referenced in Graco parts lists as a 7/8" spring lock washer. Always verify against your model’s parts diagram to confirm stack order and quantity.
If your parts manual calls out 101533 (or a 7/8" spring lock at that location), it will fit. Check the exact assembly (ram, frame, tie-rod, or pump mount) and quantity required.
Ensure flat seating, follow manufacturer torque specs, and replace worn hardware as a set (bolt, nut, and washer) when there’s visible wear or repeated loosening.
Use the specification listed in your exact model’s manual (material/finish can vary by environment). When the part number is 101533, this OEM washer is the intended replacement.
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