A thin brass shim that brings a screw connection precisely to size
Brass sits between copper and steel: softer than steel, more dimensionally stable than copper. At a screw connection, a brass washer creates a smooth, even bearing surface and prevents a nut from digging into the component underneath as it is tightened. At one millimetre thick, this one is among the thinnest shims in our range.
The dimensions are 16,5 × 26 × 1 mm, the part number is L165/2. If you find it in service documentation, this item is the right part.
When it is due
The old washer is warped, cracked or has a visible impression. It no longer lies flat on the table. The nut above it works loose on its own because the bearing surface is no longer level. Or you have the assembly open anyway – then a new shim goes in as well; it costs less than a second appointment.
At a glance
| Type |
Washer, brass |
| Location |
The documentation does not give an installation location for this item. |
| Fits |
The documentation does not name a machine. Send us the serial number and we will check the fit. |
| Included |
One washer |
| Part number |
L165/2 |
| Specification |
16,5 × 26 × 1 mm, brass |
| Installation |
Installation by a qualified technician recommended |
| Brand |
La Marzocco |
Important for installation
The washer sits inside the machine. Only work on the machine when it is switched off, cooled down and depressurised. Before installing, compare the inner diameter, outer diameter and thickness with the old washer – one millimetre of thickness is hard to spot by eye, but noticeably changes the height of the screw connection. We deliberately do not give step-by-step instructions here.
Washers and shims in the catalogue
With a shim, what matters is material, inner diameter, outer diameter and thickness – the name alone is never enough. We stock these items:
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Ø 30 mm outside: I.1.091, 14,2 × 30 × 2 mm, steel, I.6.005, 14,1 × 30 × 2 mm, Teflon, I.1.033, 10,7 × 30 × 1,8 mm, A2 stainless steel and F.1.032, 10 × 30 × 2 mm, PTFE
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Smaller sizes: L100/D, 10 × 14 × 1,5 mm, copper, L165/2, 16,5 × 26 × 1 mm, brass (this item) and I.1.170, 14 × 7 × 0,5 mm, brass
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Copper washers for the pump: L180/1, 22 × 17 × 1,5 mm, L100/1A and L4002
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No dimensions given: I.6.024, without scratch protection
Two washers of almost the same size are not interchangeable if the material is different: a copper washer is allowed to settle, a Teflon washer is springy, a steel washer stays hard. If in doubt, the number on your old part decides.
Who it is for
For workshops that replace the shims at the same time during an overhaul, and for anyone looking for exactly this washer using the number L165/2 from service documentation.
What goes with it
The second brass shim in our range is the I.1.170 with 14 × 7 × 0,5 mm; the hard counterparts are the steel washer I.1.091 and the stainless steel washer I.1.033. You will find all small parts in the category Original spare parts, the rest of the range under La Marzocco accessories and spare parts.
From our workshop
In Bern and Zurich, we check shims with a calliper instead of laying them side by side – 0,5 and 1,0 millimetres of thickness look identical in the light of the workbench, and then the difference does show during reassembly. That is our routine, not a manufacturer requirement. There is usually a cup ready as well: Nutty Delight, Cozy Chocolate or Very Nutty. More under Coffee beans.
No returns
Original spare parts are excluded from exchange and return. They are sourced specifically for each order and cannot be resold after installation or a trial fitting on the machine. So before ordering, check the model, year of manufacture and serial number of your machine – or drop us a line and we will check the fit together. Your rights in the event of defective goods remain unaffected.
Frequently asked questions
Which machine is this washer fitted to?
Our documentation does not say, so we do not claim it. What is reliable is the number L165/2 and the size 16,5 × 26 × 1 mm. Send us the serial number and we will check the fit.
Is this a sealing washer?
The documentation describes it as a washer, not as a seal. Whether there is also a sealing ring at your installation point is best checked on the removed part.
How does it differ from the brass washer I.1.170?
In size: L165/2 measures 16,5 × 26 × 1 mm, I.1.170 measures 14 × 7 × 0,5 mm. Both are made of brass, but they are not interchangeable.
How many pieces do I get?
One washer per order unit.
Can I see the part in your shop?
Our showrooms in Bern (Gerberngasse 44) and Zurich (Hagenholzstrasse 50b) show a wide selection, but not our entire range – the display changes. Drop us a quick line at [email protected] before your visit, and we will check whether the product you have in mind is currently there.
Questions about fit? Write to us at [email protected]. We deliver across Switzerland and to Liechtenstein in 2-4 working days.
