Tornado Tempest Debris Bag Clamp Nut M4 K73116240

The Tornado Tempest debris bag clamp nut (part# K73116240) is the M4 nut that retains the debris bag clamp pivot in the hopper, with two fitted. Tacony lists it as nut M 4-A2, Clamp for Debris Bag — the A2 designation marks it as stainless steel.

Stainless here is a deliberate choice rather than an upgrade. The inside of a hopper is the wettest, dirtiest place on the machine: it collects whatever the floor had on it, and on a sweeper used anywhere near a doorway that includes moisture and salt. A plain steel nut in that position corrodes into its screw, and the next person to service the bag clamp has to destroy the fastener to get it apart.

Compatible Models for the Debris Bag Clamp Nut M4

• Tornado Tempest Wide-Area Cordless Carpet Vacuum Sweeper — Model TV400-W26-U

When to replace it

• The thread is stripped, crossed or galled.
• The flats are rounded so it cannot be held properly.
• It has corroded onto its screw — which suggests it is not the original stainless part.
• It has been found loose or missing in service.
• The clamp assembly has been dismantled.

Fitting notes

Remove the battery pack before starting. The nut retains the shouldered clamp screw (part# K61001890) through the clamp and sleeve. Do not substitute a plain steel nut — it will corrode in place and turn a routine service into a drilling job. Tighten fully against the screw collar and confirm the clamp still pivots freely before fitting a liner.

Twin City Vacuum has been selling and servicing Tornado equipment since 1956. Browse the full Tornado Tempest parts range, or see the Tornado Tempest TV400-W26-U machine. Manufacturer information is at tornadovac.com.

Frequently Asked Questions

What does the debris bag clamp nut do on the Tornado Tempest?

It retains the shouldered pivot screw that carries the debris bag clamp inside the hopper.

How do I know if my clamp nut needs replacing?

If the thread is stripped, the flats are rounded, it has corroded onto its screw, or it has worked loose. Renew it whenever the clamp assembly has been apart.

What models is the clamp nut (part# K73116240) compatible with?

The Tornado Tempest TV400-W26-U wide-area cordless carpet sweeper. PartSmart lists it against the Tempest alone, and two are fitted per machine.

Why is this nut stainless steel?

Because it lives inside the hopper, which is the wettest and dirtiest part of the machine. A plain steel nut corrodes onto its screw there, and the next service has to destroy the fastener to get it apart.

How do I order the clamp nut (part# K73116240) or get help?

You can add the clamp nut (part# K73116240) directly to your cart on this page, or call us at 763-535-0770. Our staff at 5415 West Broadway, Crystal, MN 55428 has been servicing Tornado equipment since 1956 and can help confirm the right part for your machine.

Questions? Call us at 763-535-0770 or visit us at 5415 West Broadway, Crystal, MN 55428.