Overview
The Lawson Products 6201 grease fitting is a precision-engineered ball check fitting designed for hydraulic, pneumatic, pump, and plumbing systems. This straight-configuration fitting delivers dependable performance across industrial maintenance, agricultural equipment, and mobile hydraulic applications. With its hardened steel construction and sealed design, the 6201 provides lasting durability in demanding operating environments.
Key Features
- Ball-check design blocks dirt, debris, and backflow to prevent contamination
- Enlarged inner passage allows rapid lubricant flow and reduces maintenance time
- Spring-loaded ball mechanism holds firm seal under pressure while retracting smoothly for easy fill
- Spherical base creates leakproof seal even at wide coupler angles for consistent performance
- Precision-machined 1/4-28 tapered threads ensure accurate, effortless installation
- Hardened steel body rated for industrial hydraulic and pneumatic duty
Technical Specifications
- Part Number: 6201
- Thread Size: 1/4-28 SAE (Tapered)
- Style: Straight
- Length: 11/16 inches
- Material: Hardened Steel
- Finish: Zinc-plated
- Packing: 25 per bag
- Type: Ball Check Grease Fitting
Typical Applications
- Heavy equipment and fleet vehicles (agricultural, construction, mining)
- Hydraulic pump and motor lubrication ports
- Bearing and pivot point lubrication in industrial machinery
- Pneumatic and pneumatic-hydraulic hybrid systems
- Mobile equipment where reliable seal integrity is critical
- Emergency backup and standby power equipment
Compatibility & Replacements
Compatible With
- All standard hydraulic grease gun couplers
- 1/4-28 SAE threaded ports
- Hand-operated and air-operated grease guns
- Lawson grease gun lineup (all models)
- Industrial hydraulic systems and mobile equipment
Replaces / Drop-In Replacement For
- OEM straight 1/4-28 SAE grease fittings across equipment lines
- Earlier Lawson straight ball check fittings (same thread and size)
Works With
- Standard ISO hydraulic grease (NLGI Grade 2 and 3)
- Synthetic and mineral-based lubricants
- All major hydraulic coupler brands
- Manual hand pumps and air-operated grease systems
