Sime
Sime Brass Nut 1/2" 6146301
Sime 6146301 brass nut, 1/2 inch, used as a burner manifold locking nut on compatible Sime gas boilers.
At a glance
- Also known as 2040558
Showing prices
£3.29
£2.74 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 Sime 6146301 is a 1/2 inch brass nut used as a burner manifold locking nut. It is manufactured by Sime for use in their gas boilers. This nut secures the burner manifold connection on compatible Sime appliances.
Signs this part needs replacing
- Visible corrosion or verdigris on the brass nut
- Rounded or damaged hex flats preventing proper tightening
- Gas smell or leak detected at the burner manifold joint
- Nut becomes loose or cannot be tightened to secure the manifold
- Thread damage or cross-threading on the nut
Before you order
- Confirm the part number 6146301 matches your existing nut
- Check your boiler model against the fitment list above
- Verify the thread size is 1/2 inch
- Ensure the nut is for the burner manifold locking application
Compliance
| Alternative numbers | 2040558 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| SIME CLIMIT GG M 23 BF MET - 8105460 | — | — | — | |
| SIME CLIMIT GG M 23 OF MET - 8105550 | — | — | — | |
| SIME CLIMIT GG M 28 BF MET - 8105461 | — | — | — | |
| SIME CLIMIT GG M 28 OF MET - 8105551 | — | — | — | |
| SIME CLIMIT GGF 23 OF MET - 8104605 | — | — | — | |
| SIME CLIMIT GGF 28 BF MET - 8104668 | — | — | — | |
| SIME CLIMIT GGF 28 OF MET - 8104606 | — | — | — | |
| SIME DEWY 30/130 HE FS - 8101905 | — | — | — | |
| SIME DEWY 30/130 WM - 8101900 | 47-293-05 | 47-293-05 | — | — |
| SIME DEWY 30/80 WM - 8097800 | 47-283-04 | 47-283-04 | — | — |
Showing 10 of 212 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
SIME appliance manual — DEWY 30/130 HE FS - 8101905
manualmanualSIME appliance manual — DEWY 30/130 WM - 8101900 (GC 47-293-05), DEWY 30/80 WM - 8097800 (GC 47-283-04)
manualmanualSIME appliance manual — DEWY HE 30/50 WM - 3830011 (GC 47-719-23)
manualmanualSIME appliance manual — ECOMFORT 25HE (GC 47-283-06), ECOMFORT 30HE (GC 47-719-25), ECOMFORT 35HE (GC 47-283-09), ECOMFORT SYSTEM 25HE (GC 41-283-04)
manualmanualSIME appliance manual — ECOMFORT PLUS 25HE - 8104012 (GC 47-283-13), ECOMFORT PLUS 25HE SYSTEM - 8104013 (GC 41-283-10), ECOMFORT PLUS 30 HE - 8104011 (GC 47-283-14)
manualmanualSIME appliance manual — FORMAT 100B LPG - 8105403 (GC 47-283-08), FORMAT 100B NATURAL GAS - 8105402 (GC 47-283-08), FORMAT 80B LPG - 8105401 (GC 47-283-07), FORMAT 80B NATURAL GAS - 8105400 (GC 47-283-07)
manualmanualSIME appliance manual — FORMAT 100C - 8098456 (GC 47-719-13), FORMAT 100C LPG - 8098455 (GC 47-719-13), FORMAT 110C (GC 47-719-21), FORMAT 80C - 8098454 (GC 47-719-12), FORMAT 80C LPG - 8098459 (GC 47-719-12)
manualmanualSIME appliance manual — FORMAT 30 HE - 8101206 (GC 47-719-22)
manualmanualSIME appliance manual — FORMAT SYSTEM 24 LPG - 8098471, FORMAT SYSTEM 24 NATURAL GAS - 8098470 (GC 41-719-15), FORMAT SYSTEM 30 NATURAL GAS - 8098472 (GC 41-719-16)
manualmanualSIME appliance manual — FORMAT SYSTEM 25 HE - 8101250 (GC 41-719-17)
manualmanualSIME appliance manual — FRIENDLY E - 8088906 (GC 47-719-05)
manualmanualSIME appliance manual — FRIENDLY FORMAT 100E - 8092962 (GC 47-719-09), FRIENDLY FORMAT 80 TECHNYL - 8092974 (GC 47-719-20), FRIENDLY FORMAT 80 - 8092956 (GC 47-719-07), FRIENDLY FORMAT 80E TECHNYL - 8092973 (GC 47-719-19), FRIENDLY FORMAT 80E - 8092955 (GC 47-719-08)
manualmanualSIME appliance manual — FRIENDLY P.PILOT - 8088905 (GC 47-719-03)
manualmanualSIME appliance manual — MURELLE 20 CE GPL - 8069413, MURELLE 20 CE IONO GPL - 8069415, MURELLE 20 CE IONO MET - 8069414, MURELLE 20 CE MET - 8069412 (GC 47-719-18), MURELLE 20 R CE IONO MET - 8071524, MURELLE 20 TX CE IONO MET - 8076909, MURELLE CE
manualmanualSIME appliance manual — MURELLE HE 25/55 BF - 8102720, MURELLE HE 30/55 BF - 8102722
manualmanualSIME appliance manual — PLANET DEWY 110 - 8093587 (GC 47-719-11), PLANET DEWY 90 - 8093583 (GC 47-719-10)
manualmanualSIME appliance manual — PLANET DEWY 60 BFR - 8093575 (GC 41-283-03), PLANET DEWY 60 BFR - 8093577 (GC 41-283-03)
manualmanualSIME appliance manual — PLANET SUPER 4 F.S - 8091610 (GC 47-719-17)
manualmanualSIME appliance manual — PLANET SUPER 4 W.M 600MM - 8096505 (GC 47-719-16), PLANET SUPER 4 W.M 630MM - 8096502 (GC 47-719-16)
manualmanualSIME appliance manual — SUPER 102 DE-LUXE - 8088903 (GC 47-719-02), SUPER 80 - 8088904 (GC 47-719-06), SUPER 90 - 8088902 (GC 47-719-01)
manualmanualSIME appliance manual — SUPER 105 MKII - 8093563 (GC 47-719-15), SUPER 90 MKII - 8093560 (GC 47-719-14)
manualmanualSIME appliance manual — SUPER FOUR - 8091605 (GC 47-719-04), SUPER FOUR REVISED - 8091607 (GC 47-719-04)
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