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High-Pressure FLARE-O Fittings with O-Ring Seal (SAE 37°Flare)
FLARE-O Fittings are precisely built hydraulic connectors that are intended to provide leak-free performance in applications involving low to medium pressure (up to 3,000 PSI). These fittings guarantee a strong, vibration-resistant connection by integrating an elastomeric O-ring that is positioned strategically within the sealing boundary. They offer better sealing dependability and can be used as a drop-in replacement for conventional flared tube fittings, all while being compatible with SAE 37° flare standards. FLARE-O Fittings, which come in a variety of O-ring materials (Buna-N, Viton, and EPDM), are perfect for demanding hydraulic, mobile, and industrial systems.
Description
1. Leak-Proof Design
The patented O-ring seal eliminates hydraulic fluid leakage, even in high-vibration environments.
Sealing performance surpasses conventional metal-to-metal flare fittings.
2. Pressure & Compatibility
Rated for up to 3,000 PSI, suitable for most low/medium-pressure hydraulic systems.
Conforms to SAE J514 standards (37° flare) and includes SAE-to-NPT adapters for versatility.
3. Material Options
O-Ring Choices: Buna-N (standard oil-resistant), Viton (high-temperature/fuel-resistant), EPDM (water/chemical-resistant).
Fitting bodies made from durable carbon steel or stainless steel (optional).
4. Simple Installation
Direct replacement for SAE 37° flare fittings—no specialized tools required.
Reusable design with minimal maintenance.
F2403
F6803 flare-o fittings
F6803 flare-o high pressure fittings
F6803 flare-o hydraulic fittingsKey Considerations:
✔ Pressure Limits: Do not exceed 3,000 PSI. For higher pressures, consult NJ for alternatives.
✔ O-Ring Selection: Match material to fluid type (e.g., Viton for fuel, EPDM for water glycol).
✔ Inspection: Regularly check O-rings for wear and replace if damaged.
Manufacturing & Quality Assurance
Precision Machining: CNC-tooled fittings ensure exact SAE 37° flare angles for seamless compatibility.
O-Ring Optimization: Finite Element Analysis (FEA) validates seal compression under load.
Testing: 100% pressure-tested to guarantee leak-free performance.
Why Choose NJ FLARE-O Fittings?
✔ Leak-Free Guarantee: O-ring technology outperforms traditional flared fittings.
✔ Wide Compatibility: SAE 37° and NPT adapters simplify system integration.
✔ Durability: Corrosion-resistant coatings and premium materials extend service life.
✔ Cost-Effective: Reduces downtime and fluid loss from leaks.
Technical Data
FLARE-O UNION STRAIGHT ADAPTER
| PART NO.SIZE | B1 TUBE O.D. | B1 TUBE O.D. | B1 SAE 37 | B2 SAE 37 | B1 DRILL | B2 DRILL | L LGTH | C HEX |
| F2403-04-04 | 1/4 | 1/4 | 7/16-20 | 7/16-20 | 0.172 | 0.172 | 1.37 | 0.5 |
| F2403-05-05 | 5/16 | 5/16 | 1/2-20 | 1/2-20 | 0.234 | 0.234 | 1.37 | 0.562 |
| F2403-06-04 | 3/8 | 1/4 | 9/16-18 | 7/16-20 | 0.297 | 0.172 | 1.4 | 0.625 |
| F2403-06-05 | 3/8 | 5/16 | 9/16-18 | 1/2-20 | 0.297 | 0.234 | 1.4 | 0.625 |
| F2403-06-06 | 3/8 | 3/8 | 9/16-18 | 9/16-18 | 0.297 | 0.297 | 1.41 | 0.625 |
| F2403-08-06 | 1/2 | 3/8 | 3/4-16 | 9/16-18 | 0.391 | 0.297 | 1.52 | 0.812 |
| F2403-08-08 | 1/2 | 1/2 | 3/4-16 | 3/4-16 | 0.391 | 0.391 | 1.62 | 0.812 |
| F2403-10-06 | 5/8 | 3/8 | 7/8-14 | 9/16-18 | 0.484 | 0.297 | 1.68 | 0.937 |
| F2403-10-08 | 5/8 | 1/2 | 7/8-14 | 3/4-16 | 0.484 | 0.391 | 1.78 | 0.937 |
| F2403-10-10 | 5/8 | 5/8 | 7/8-14 | 7/8-14 | 0.484 | 0.484 | 1.88 | 0.937 |
| F2403-12-08 | 3/4 | 1/2 | 1-1/16-12 | 3/4-16 | 0.609 | 0.391 | 1.95 | 1.125 |
| F2403-12-10 | 3/4 | 5/8 | 1-1/16-12 | 7/8-14 | 0.609 | 0.484 | 2.05 | 1.125 |
| F2403-12-12 | 3/4 | 3/4 | 1-1/16-12 | 1-1/16-12 | 0.609 | 0.609 | 2.16 | 1.125 |
| F2403-14-14 | 7/8 | 7/8 | 1-3/16-12 | 1-3/16-12 | 0.719 | 0.719 | 2.21 | 1.250 |
| F2403-16-08 | 1 | 1/2 | 1-5/16-12 | 3/4-16 | 0.844 | 0.391 | 2 | 1.375 |
| F2403-16-12 | 1 | 3/4 | 1-5/16-12 | 1-1/16-12 | 0.844 | 0.609 | 2.2 | 1.375 |
| F2403-16-16 | 1 | 1 | 1-5/16-12 | 1-5/16-12 | 0.844 | 0.844 | 2.25 | 1.375 |
| F2403-20-16 | 1-1/4 | 1 | 1-5/8-12 | 1-5/16-12 | 1.078 | 0.844 | 2.38 | 1.688 |
| F2403-20-20 | 1-1/4 | 1-1/4 | 1-5/8-12 | 1-5/8-12 | 1.078 | 1.078 | 2.43 | 1.688 |
| F2403-24-16 | 1-1/2 | 1 | 1-7/8-12 | 1-5/16-12 | 1.312 | 0.844 | 2.58 | 2 |
| F2403-24-24 | 1-1/2 | 1-1/2 | 1-7/8-12 | 1-7/8-12 | 1.312 | 1.312 | 2.75 | 2 |
| F2403-32-32 | 2 | 2 | 2-1/2-12 | 2-1/2-12 | 1.781 | 1.781 | 3.4 | 2.625 |
Application
Hydraulic Systems: Tractors, construction machinery, and industrial equipment.
Fluid Transfer: Fuel lines, coolant systems, and lubrication networks.
Mobile Equipment: Agricultural, forestry, and mining vehicles.
