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Johnson & Starley Nylon Washer 1000-3002050

Johnson & Starley

Johnson & Starley Nylon Washer 1000-3002050

3/4" BSP sealing washer for Johnson & Starley Hiflow boilers, part number 1000-3002050.

At a glance

  • Also known as 1690008
Manufacturer part no.
1000-3002050
Showing prices

£1.40

£1.17 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

A 3/4" BSP sealing washer supplied by Johnson & Starley for use on Hiflow boilers. It seats at a threaded 3/4" BSP joint to seal the connection against water or gas escape. The washer is listed as a nylon type in the manufacturer's parts data.

Signs this part needs replacing

  • Visible weeping or dripping at the 3/4" BSP joint
  • Damp staining, corrosion or limescale tracking around the connection
  • Washer hardened, flattened, cracked or deformed on inspection
  • Leak reappears immediately after the joint is remade
  • Water or gas escape detected at the union during a service or tightness test

Before you order

  • Confirm the connection is 3/4" BSP before ordering
  • Check the appliance model against the manufacturer's parts list for the Hiflow range
  • Inspect the joint for thread damage as well as washer condition, as a damaged thread will not seal with a new washer alone
  • Confirm how many washers the joint requires

Not sure which part?

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