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Potterton Nipple M/F 3/8 Inch 5142442

Potterton

Potterton Nipple M/F 3/8 Inch 5142442

Male-to-female threaded nipple, 3/8 inch, L40 length designation, for Potterton Commercial Sirius boilers.

Manufacturer part no.
5142442
Showing prices

£33.48

£27.90 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 NIPPLE - M/F 3/8 INCH is a threaded male-to-female nipple supplied by Potterton for use on Potterton Commercial appliances. It provides a threaded connection point within the boiler assembly, with a 3/8 inch thread and an L40 length designation. It is listed against Potterton Commercial Sirius 2 and Sirius 3 boiler models.

Signs this part needs replacing

  • Weeping or dripping at the threaded joint
  • Visible corrosion or pitting on the nipple body or threads
  • Damaged or cross-threaded threads preventing a sound seal
  • Scale or debris build-up restricting flow through the fitting
  • Joint that will not seal after resealing or re-tightening

Before you order

  • Confirm the thread size is 3/8 inch
  • Confirm the L40 length designation matches the part being removed
  • Check the appliance model against the fits list above
  • Compare the part number on the existing component with 5142442

Not sure which part?

Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.