Ariston
Ariston Lock Nut 1/2 Inch 573530
Brass 1/2 inch lock nut for Ariston gas boilers, supplied in a pack of five.
At a glance
- Part type: lock nut
- Also known as 1573494
Showing prices
£1.98
£1.65 ex. VAT · VAT at 20%
Available to order · 3 working days
Available to order · 3 working days
Not certain it's the right part? The technical team verifies fitment before dispatch — no charge, and it stops a second trip.Call the technical teamSend a technical question
Same-day dispatch
Ordered by 4pm Mon–Fri, 10:30am Sat.
30-day returns
Unused, in original packaging.
What it is
The Ariston 573530 is a brass 1/2 inch lock nut used on Ariston gas boilers. It secures threaded connections within the appliance. The part is supplied in a pack of five.
Signs this part needs replacing
- Corrosion or discolouration on the brass body
- Rounded or damaged flats that prevent correct tightening
- Damaged, crossed or flattened threads
- Weeping or dampness at the joint the nut secures
- The nut works loose after tightening
Before you order
- Confirm your boiler model and GC number against the fitment list
- Check that the connection requires a 1/2 inch thread
- Check how many nuts are needed, as the part is supplied in packs of five
- Have the part number 573530 to hand
Compliance
| Barcode / EAN | 5411692087975 |
|---|---|
| Alternative numbers | 1573494 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| ARISTON DIA 20 MFFI CE UK LPG | 47-116-03 | 47-116-03 | — | — |
| ARISTON DIA 20 MFFI CE UK MET | 47-116-03 | 47-116-03 | — | — |
| ARISTON DIA 20 MI CE UK LPG | — | — | — | |
| ARISTON DIA 20 MI CE UK MET | — | — | — | |
| ARISTON DIA 24 MFFI CE UK LPG | 47-116-04 | 47-116-04 | — | — |
| ARISTON DIA 24 MFFI CE UK MET | 47-116-04 | 47-116-04 | — | — |
| ARISTON DIA 24 MI CE UK LPG | — | — | — | |
| ARISTON DIA 24 MI CE UK MET | — | — | — | |
| ARISTON EXCALIBUR 100 LPG EDITION 1 (JAN 2004) | — | — | — | |
| ARISTON EXCALIBUR 100 NG | — | — | — |
Showing 10 of 31 compatible appliances.
Fitment listings are a guide, not a guarantee. Plant-room assemblies get modified on site more often than not. Send us the GC number off the data badge and a photo of the existing valve and we will confirm before anything is dispatched.
Documents & drawings
Everything we hold for this part. Where a document exists but we don't hold it, the technical team will source it from the manufacturer — usually the same working day.
manual
ARISTON appliance manual — DIA 20 MFFI CE UK LPG (GC 47-116-03), DIA 20 MFFI CE UK MET (GC 47-116-03), DIA 24 MFFI CE UK LPG (GC 47-116-04), DIA 24 MFFI CE UK MET (GC 47-116-04)
manualmanualARISTON appliance manual — DIA 20 MI CE UK LPG, DIA 20 MI CE UK MET, DIA 24 MI CE UK LPG, DIA 24 MI CE UK MET
manualmanualARISTON appliance manual — GENUS 27 BFFI PLUS LPG EDITION 1 (MAY 2000) (GC 47-116-11), GENUS 27 BFFI PLUS LPG EDITION 2 (OCT 2000) (GC 47-116-11), GENUS 27 BFFI PLUS LPG EDITION 3 (MAY 2001) (GC 47-116-11), GENUS 27 BFFI PLUS LPG EDITION 4 (OCT 2003) (GC 47-116-11), GENUS 27 BFFI PLUS NG EDITION 1 (MAY 2000) (GC 47-116-11), GENUS 27 BFFI PLUS NG EDITION 2 (OCT 2000) (GC 47-116-11), GENUS 27 BFFI PLUS NG EDITION 3 (MAY 2001) (GC 47-116-11), GENUS 27 BFFI PLUS NG EDITION 4 (OCT 2003) (GC 47-116-11)
manualmanualARISTON appliance manual — GENUS 27 BFFI UK LPG EDITION 2 (JUN 1998) (GC 47-116-11), GENUS 27 BFFI UK LPG EDITION 3 (DEC 2000) (GC 47-116-11), GENUS 27 BFFI UK NG EDITION 2 (JUN 1998) (GC 47-116-11), GENUS 27 BFFI UK NG EDITION 3 (DEC 2000) (GC 47-116-11)
manualmanualARISTON appliance manual — MICROCOMBI 23 MFFI NG EDITION 4 (APR 2002) (GC 47-116-16), MICROCOMBI 28 MFFI LPG EDITION 1 (APR 2003) (GC 47-116-24), MICROCOMBI 28 MFFI NG EDITION 1 (APR 2003) (GC 47-116-24)
manualmanualARISTON appliance manual — SX 20 MFFI CE LPG PROG. MEC EDITION 1 (JULY 2007), SX 20 MFFI CE NG PROG. MEC EDITION 1 (JULY 2007) (GC 47-116-02)
manualNo technical questions yet for this part.
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