Tornado Washer M8 K73120170

The Tornado washer M8 (part# K73120170) is a genuine Tacony OEM washer used across three Tornado machines. Tacony’s own record specifies it as WASHER 8 A2 EN ISO 7089 — an M8 washer in A2 stainless to the EN ISO 7089 standard, which is the flat-washer specification for ordinary metric fasteners.

That published dimension matters here, because the Tempest alone uses fourteen parts catalogued under the single word “washer” and most of them carry no size at all. This is one of the few with a stated specification, which makes it identifiable rather than merely locatable. On the Tempest it is fitted on the side broom assembly.

Compatible Models for the Washer M8

This part is a genuine Tacony OEM component shared across several Tornado machines:

• Tornado Tempest Wide-Area Cordless Carpet Vacuum Sweeper — Model TV400-W26-U
• Tornado BR 16/3 16″ Automatic Scrubber — Model 99406
• Tornado BR VARIO II Cylindrical Brush — Model 97607

Not sure if this fits your machine? Call us at 763-535-0770 and we will confirm compatibility for you.

When to replace it

• The washer is dished, cupped or bedded into the material beneath it.
• It is corroded or pitted so it cannot seat flat.
• The fastener it serves has been found loose.
• It has been lost during a strip-down.
• Any time the joint it sits in has been dismantled.

Fitting notes

Remove the battery pack before working on the Tempest. Note the stack order as you dismantle — washer, spring washer and nut are not always in the order you would guess. Seat it flat and tighten the fastener enough to clamp without distorting whatever sits beneath it.

On pricing: Tacony does not currently list part# K73120170 in the dealer catalogue, so we do not publish a price for it rather than estimate one. Call 763-535-0770 and we will source it and quote you.

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 this washer do?

It spreads the clamping load of its M8 fastener so the fastener does not pull through or crush the material beneath it. On the Tempest it is used on the side broom assembly.

How do I know if it needs replacing?

If it is dished or cupped, bedded into the material beneath it, corroded so it cannot seat flat, or if the fastener it serves has worked loose. Renew it whenever the joint has been apart.

What models is this washer (part# K73120170) compatible with?

Three Tornado machines: the Tempest TV400-W26-U wide-area cordless carpet sweeper, the BR 16/3 16″ automatic scrubber (Model 99406) and the BR VARIO II cylindrical brush machine (Model 97607).

What exactly is the specification?

Tacony records it as WASHER 8 A2 EN ISO 7089 — an M8 flat washer in A2 stainless steel to the EN ISO 7089 standard.

How do I order the washer (part# K73120170) or get help?

You can add the washer (part# K73120170) 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.