WASHER, FLAT, USS, 5/16-18

The Genie 5397GT is a genuine OEM Flat Washer, USS, 5/16 designed for an exceptionally wide range of Genie aerial work platforms, material lifts, telehandlers, and light towers. As a genuine OEM component, this washer is manufactured to the same specifications as the original hardware used during assembly, ensuring a direct, consistent fit wherever a 5/16 USS flat washer is called out in your parts manual. Cross-reference part number 5397GT against your Genie parts documentation to confirm the correct application for your specific machine. From GS scissor lifts and S and Z series boom lifts to GTH telehandlers and AL and TML light towers, this single part spans one of the broadest compatibility ranges in the Genie hardware catalog.

Key Features

• Genuine OEM Hardware Grade — Manufactured to the same USS flat washer standard as the original assembly hardware, delivering consistent load distribution and surface protection at every fastener point.
• 5/16 USS Sizing, Drop-In Installation — The USS (United States Standard) dimensioning means the outer diameter and thickness match what Genie engineers specified, so this washer seats correctly under bolt heads and nuts without shimming or adjustment.
• Exceptionally Broad Fitment — A single part number covering Genie GS scissor lifts, S and SX telescopic boom lifts, Z and ZX articulating boom lifts, GTH telehandlers, AL and TML light towers, QS stock-picking lifts, GR vertical mast lifts, and Superlift material lifts, among others.
• Prevents Fastener Pull-Through and Surface Damage — A properly sized flat washer distributes clamping load across a wider area, protecting mating surfaces from deformation and keeping bolted joints tight through vibration and load cycles.
• Stocking Versatility — Because this washer appears across so many machine families and assembly points, keeping a small supply on hand covers a wide range of maintenance and repair scenarios across a mixed Genie fleet.

A flat washer is a simple but essential fastener component placed between a bolt head or nut and the mating surface it bears against. Its primary job is to spread the clamping force of the fastener over a larger contact area, which prevents the bolt from pulling through softer materials, protects surface finishes, and helps maintain consistent joint tension even when the machine is subject to vibration or dynamic loads. The USS standard specifies a relatively large outer diameter relative to the bolt size, making these washers well suited to structural and general assembly applications throughout the machine. When a washer is missing, damaged, or the wrong size, the fastener joint can loosen prematurely or the mating material can deform, compromising the integrity of the assembly it secures.

Part Details

Compatibility & Fitment

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.