Lincoln
Lincoln G320 90 Deg Grease Coupler
90-degree grease coupler for hand and air grease guns with 1/8 inch FNPT connection and 1000 psi working pressure
- ColorTransparent
- 90-degree angle reaches tight grease fittings easily
- 1000 psi rating handles high-pressure lubrication tasks
- 1/8 inch FNPT connection fits standard grease guns
- Transparent body allows quick visual inspection of flow
- Lincoln Industrial brand trusted for professional garage equipment
Grease Coupler for Hand and Air Guns
The Lincoln G320 grease coupler connects to hand-operated and air-operated grease guns for lubrication tasks. Its 90-degree angle helps reach fittings in confined spaces where straight couplers cannot fit. The transparent body allows visual confirmation of grease flow during use. This coupler suits maintenance technicians and DIY users servicing automotive or industrial equipment.
Working Pressure and Connection Limits
The coupler is rated for a working pressure of 1000 psi, which sets the maximum force it can handle during grease dispensing. It uses a 1/8 inch FNPT connection thread to attach to the gun hose or extension. Exceeding the pressure rating risks seal failure or coupler damage. The 90-degree bend adds slight flow restriction compared to straight models under high viscosity grease.
Installation and Common Issues
Thread the coupler onto the 1/8 inch FNPT fitting of the gun or hose using appropriate sealant to prevent leaks. Over-tightening can crack the transparent housing or strip the threads. The 90-degree orientation is fixed, so ensure the angle suits the access point before final tightening. Dirt or damaged threads on the gun connection are the most frequent cause of leakage.
Highlights
- 90-degree angle reaches tight grease fittings easily
- 1000 psi rating handles high-pressure lubrication tasks
- 1/8 inch FNPT connection fits standard grease guns
- Transparent body allows quick visual inspection of flow
- Lincoln Industrial brand trusted for professional garage equipment
Specifications
| Color | Transparent |
|---|---|
| Brand | LINCOLN INDUSTRIAL |
Questions about this item
Should I choose the G320 90-degree coupler or a straight version for my grease gun?
The G320 is a 90-degree coupler designed for tight clearances where a straight coupler cannot reach the fitting.
What does the 1000 psi working pressure mean when I am greasing equipment?
It means the coupler is rated to handle up to 1000 psi from hand or air-operated grease guns without leaking or failing.
How does the 1/8 inch FNPT connection affect which guns I can use?
The 1/8 inch FNPT thread fits the standard inlet on most hand and air-operated grease guns, so no adapter is needed.
Also in this aisle
People compared these
Same shelf, same checkout — eight coins and a 30-minute rate lock.
Taylor Made 12" x 18" Jolly Roger Novelty Flag 1818 marine electronic
- Accessories



