• Foster LN3003 1/4" industrial air coupler, 1/4" Female NPT, Brass/Steel
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Foster

1/4" Lincoln Air Coupler x 1/4" Female NPT, Brass/Steel | Foster LN3003

1/4" Lincoln Air Coupler x 1/4" Female NPT, Brass/Steel | Foster LN3003

$44.39 USD
$44.39 USD
Sale Sold out
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Sold and shipped by Industrial Supply World from our warehouse in Elgin, Illinois.

18 in stock

Foster LN3003 is a 1/4" body Lincoln long-nose interchange air coupler with a 1/4" Female NPT end, brass body with a steel sleeve, automatic (push to connect). Rated 300 PSI with a Buna-N seal for -40°F to 250°F.

The Lincoln long-nose interchange is the 1/4" body profile used on Lincoln lubrication equipment and many tire-shop and fleet air lines. The long plug nose seats deep in the coupler, a ball-lock holds it, and the connection swivels freely so the hose does not twist or kink. Lincoln plugs do not fit industrial, ARO or Tru-Flate couplers. The coupler half is valved: pull the plug and the line shuts off.

Foster has made these in the USA since 1919, and this is the same industrial-grade coupler that goes on production-floor air drops and professional shop lines, not a light-duty import. Machined brass and plated steel, built to be rebuilt rather than thrown away.

Not sure which style your tools use? Email support@industrialsupplyworld.com with a photo of the plug and we will match it.

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OUR VERDICT

Automatic 1/4" industrial coupler: push the plug in and it locks on its own. The right choice when the same hose changes tools all day. Industrial-style plugs only.

WHAT WE LIKE
  • Made in the USA by Foster, heavy-duty industrial grade
  • Push the plug in and it locks, no sleeve to pull back
  • Solid brass body
  • One-way shut-off on disconnect
WORTH NOTING
  • Costs more than the manual coupler
  • Pull the sleeve back to release, same as a manual
Specifications
SeriesLN Series
Temperature range-40°F to 250°F
Max working pressure300 PSI
InterchangeLincoln Long-Nose
ComponentCoupler (socket)
Body size1/4"
Body materialBrass
Seal materialBuna-N (NBR)
Socket actionAutomatic (push-to-connect)
ValvingOne-way valved
Read the guide for this product line →
Lincoln Long-NoseFull interchange lookup →

Complete the connection

This is a coupler (socket) in the Lincoln Long-Nose profile. It only mates with Lincoln Long-Nose plugs (nipples) — any brand.

Shop matching plugs (nipples) →