
Regin
Regin O-Ring Imperial REGQ729
Imperial O-ring from Regin, sized 1 5/8" x 3/16" (40.65 mm x 5.33 mm), for sealing joints in heating and plumbing assemblies.
At a glance
- Also known as 4271166
£3.08
£2.57 ex. VAT · VAT at 20%
Same-day dispatch
Ordered by 4pm Mon–Fri, 10:30am Sat.
30-day returns
Unused, in original packaging.
What it is
The Regin REGQ729 is an imperial O-ring sized 1 5/8" x 3/16" (40.65 mm x 5.33 mm). It is a circular sealing ring that sits in a groove or joint face to stop water or air escaping once two components are assembled. It forms part of the Regin consumables range used across heating and plumbing work.
Signs this part needs replacing
- Visible cracking, perishing or flattening of the ring
- Water weeping or dripping from the joint the O-ring seals
- The ring has hardened and no longer springs back when squeezed
- Staining or water tracking around the joint face
- Leaks that return shortly after the joint is tightened
Before you order
- Measure the old O-ring's inside diameter and cross-section and match them to 40.65 mm x 5.33 mm
- Check the groove or seat is clean and free from scoring before fitting a new ring
- Confirm the ring material suits the system it will seal
Compliance
| Alternative numbers | 4271166 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| REGIN BITS N BOLTS | — | — | — | |
| REGIN REGIN CONSUMABLES | — | — | — |
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.
No documents held for this part. The technical team will source them from the manufacturer — usually the same working day.
No technical questions yet for this part.
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