The Genie 990620GT is a genuine OEM Nylon Insert Lock Nut built for AL4000, AL5000, AL4, and AL5 Genie light towers. As a factory-sourced part, it meets the exact dimensional and material specifications of the original hardware it replaces. Cross-reference part number 990620GT against your machine's parts manual to confirm it is the correct fastener for your unit before ordering.
Key Features
- Genuine OEM Dimensional Conformity — Manufactured to Genie's original thread pitch and insert grade specifications, so the nut seats and torques correctly the first time.
- Secure Nylon Insert Locking Action — The nylon collar grips the fastener thread and resists loosening from vibration, keeping fastened joints tight during machine operation.
- Direct Hardware Replacement — This nut installs without modification, matching the thread form and bearing face of the original fastener it replaces.
- Fits Multiple Genie Light Tower Models — Compatible with AL4000, AL5000, AL4, and AL5 portable light towers, making it a practical stocking item for fleets running Genie lighting equipment.
A nylon insert lock nut is a prevailing-torque fastener that uses an interference-fit nylon collar to resist self-loosening under vibration and dynamic loads. Once threaded onto a bolt or stud, the nylon compresses around the threads and maintains clamping force even as the machine is transported or running. A lock nut that has lost its insert grip — or has been substituted with an incorrect thread size — can allow joints to work loose over time, leading to misalignment or component separation. Replacing a worn or damaged lock nut with the correct OEM part restores the joint's clamping integrity and keeps the fastened assembly secure.
Part Details
| Part Number | 990620GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Nylon Insert Lock Nut |
Compatibility & Fitment
| Name | Models |
|---|---|
| AL4 | AL4 |
| AL5 | AL5 |
| AL4000 | AL4000 |
| AL5000 | AL5000 |
Verify Before You Order
Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.
Why Buy From DHS Equipment
Every part is verified against the manufacturer's part number before it ships, so what you order is what arrives. We carry parts from leading OEM brands and our own DHS Quality Parts line of professional aftermarket components. Need help finding the right part? Our team is available to confirm compatibility whenever you need it. Orders are processed fast to keep your jobs on track. We don't just sell parts. We keep you jobsite ready.
Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.
