Sime
Sime Brass Nut 1/8" 6146303
Brass 1/8 inch nut for Sime gas boilers, part number 6146303.
At a glance
- Also known as 2040562
- Any work on a gas-carrying joint must be carried out by a Gas Safe registered engineer
Showing prices
£2.29
£1.91 ex. VAT · VAT at 20%
Available to order · 7 working days
Available to order · 7 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
A brass nut with a 1/8 inch thread, manufactured by Sime and supplied under part number 6146303. It is used on Sime gas boiler assemblies to secure and seal a threaded connection. The brass construction resists corrosion at the joint.
Signs this part needs replacing
- Weeping or visible moisture at the threaded joint
- Corrosion, pitting or green discolouration on the brass
- Rounded or damaged flats, making the nut difficult to tighten or remove
- Cross-threaded or seized nut that will not seat correctly
- Staining or mineral deposits around the connection
Before you order
- Confirm your appliance model against the fitment list above
- Check the part number 6146303 matches the entry in your appliance's parts list
- Verify the thread size required at the connection is 1/8 inch
- Inspect the mating component and any sealing washer or olive at the joint, as these are not supplied with the nut
- Any work on a gas-carrying joint must be carried out by a Gas Safe registered engineer
Compliance
| Alternative numbers | 2040562 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| SIME AVANT 30/130 TS MET - 8091621 | — | — | — | |
| SIME CLIMIT GG M 23 BF MET - 8105460 | — | — | — | |
| SIME CLIMIT GG M 28 BF MET - 8105461 | — | — | — | |
| 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 | — | — |
| SIME DEWY HE 30/50 WM - 3830011 | 47-719-23 | 47-719-23 | — | — |
| SIME DEWY ZIP BF 25 SOLAR MET - 8101215 | — | — | — | |
| SIME DEWY ZIP BF 30 SOLAR MET - 8101216 | — | — | — | |
| SIME ECOMFORT 25HE | 47-283-06 | 47-283-06 | — | — |
Showing 10 of 102 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 30 HE - 8101206 (GC 47-719-22)
manualmanualSIME appliance manual — FORMAT SYSTEM 25 HE - 8101250 (GC 41-719-17)
manualmanualSIME appliance manual — MURELLE 25/55 BF MET - 8106600, MURELLE 30/55 BF MET - 8106602
manualmanualSIME appliance manual — MURELLE HE 25/55 BF - 8102720, MURELLE HE 30/55 BF - 8102722
manualmanualSIME appliance manual — MURELLE HE25 BF - 8106310 (GC 47-283-10), MURELLE HE30 BF - 8106312 (GC 47-283-11), MURELLE HE35 BF - 8106314 (GC 47-283-12), MURELLE SYSTEM HE12 - 8106360 (GC 41-283-05), MURELLE SYSTEM HE20 - 8106362 (GC 41-283-06), MURELLE SYSTEM HE25 - 8106364 (GC 41-283-07), MURELLE SYSTEM HE30 - 8106366 (GC 41-283-08), MURELLE SYSTEM HE35 - 8106368 (GC 41-283-09)
manualmanualSIME appliance manual — PLANET DEWY 110 - 8093587 (GC 47-719-11), PLANET DEWY 90 - 8093583 (GC 47-719-10)
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 — SUPERIOR 40 MKII - 8098100 (GC 41-719-10), SUPERIOR 50 MKII - 8098101 (GC 41-719-11), SUPERIOR 60 MKII - 8098102 (GC 41-719-12), SUPERIOR 75 MKII - 8098103 (GC 41-719-13), SUPERIOR 90 MKII - 8098104 (GC 41-719-14)
manualmanualSIME appliance manual — SUPERIOR 40CI - 8098110 (GC 41-719-10), SUPERIOR 50CI - 8098111 (GC 47-719-11), SUPERIOR 60CI - 8098112 (GC 47-719-12), SUPERIOR 80CI - 8098113 (GC 47-719-13)
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