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Steel grease gun coupler with locking sleeve and quick connect, straight 1/8 inch NPT thread

Lincoln

Lincoln 81980 Grease Gun Coupler Straight 1/8" NPT

SKU CH-SD3S-01GGR

Connects a grease gun to 1/8" NPT fittings at up to 7000 psi with a quick-connect locking sleeve

  • Product colorTransparent
  • Quick-connect coupling speeds up grease-gun changes
  • 7000 psi working pressure handles heavy-duty lubrication
  • 13,000 psi minimum burst pressure adds safety margin
  • 1/8 in. NPT male thread fits standard extensions
  • Steel construction resists wear in shop environments

Grease Gun Coupler for 1/8 NPT Systems

The Lincoln 81980 coupler connects a grease gun to hydraulic fittings using a 1/8 inch NPT thread. It is built for maintenance technicians who need a secure link between the gun and the lubrication point. The steel body resists wear in daily shop use. A locking sleeve keeps the connection firm during operation.

7000 psi Working Pressure

The coupler handles a working pressure of 7000 psi and a minimum burst pressure of 13000 psi. That headroom covers standard manual and pneumatic grease guns in automotive and industrial settings. It is not suited for ultra-high-pressure test rigs that exceed the rated working limit. The straight design fits tight access points where angled couplers cannot reach.

Locking Sleeve and Quick Connect Included

The package supplies a locking sleeve that prevents accidental disconnection under pressure. A quick-connect feature speeds up coupler changes during routine lubrication tasks. No seals, adapters or extension hoses are bundled with this unit. Buyers needing a complete hose assembly or swivel fitting must source those separately.

How it compares

Measured against everything we stock in Drain Stoppers, Strainers & Traps, at today’s prices. Recalculated every night.

Price $28.99
Typical for this category: the median of 4,240 items is $31.99.

Specifications

Product
Brand nameLINCOLN INDUSTRIAL
Product colorTransparent

Questions about this item

Will this 1/8" NPT coupler thread onto the older grease gun extension I already own?

The coupler has a 1/8" male NPT connection so it screws directly onto any standard 1/8" female NPT extension.

How can I confirm the locking sleeve is engaged and the coupler is sealed at 7000 psi working pressure?

Push the coupler onto the fitting until the sleeve clicks forward; a firm tug should not release it, indicating a secure seal at the rated pressure.

Does the box include the hydraulic coupler or only the straight adaptor?

The package contains the straight 1/8" NPT coupler with its integrated locking sleeve; a separate hydraulic coupler is not included.

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