Parker 10543-5-4 43 Series male SAE straight thread fitting with O-ring, made from steel. Ideal for hydraulic applications. Reduce hose failure risk!
| Weight | 0.12 lbs |
|---|---|
| Dimensions | 4 × 4 × 4 in |
| Manufacturer | Parker |
| Fitting Parker Group | Fluid Connector |
| Fitting Parker Division | Hose Products |
| Fitting Series | 43 |
| Fitting Material | Steel |
| Fitting Measurement System | Inch |
| Fitting Inner Diameter | 0.25 Inch |
| Fitting End Connection | 5/16 Inch |
| Fitting Special Features | ["with O-Ring"] |
| Fitting Connection End | External |
| Fitting Thread Type | SAE 45° |
| Fitting Movement Type | Rigid |
| Fitting Configuration | Straight |
Technical Overview
The Parker 10543-5-4 43 Series fitting exemplifies innovative design, serving as a permanent (crimp) style fitting that allows for quick assembly with Parker’s range of Parkrimp crimpers. This efficiency is enhanced by the No-Skive feature, which means that the outer cover of the hose does not need to be removed during assembly, thereby minimizing the risk of premature hose failure due to improper skiving.
Crafted from durable steel and featuring a Chromium-6 free plating, this fitting is not just practical but also adheres to modern environmental standards. It is compatible with a variety of hoses including Parker Hydraulic Braided, Light Spiral, Specialty, Suction, and Return hoses, making it a versatile choice for diverse hydraulic applications.
Specifications
- Part Number: 10543-5-4
- Material: Steel
- Fitting Type: Male SAE Straight Thread with O-Ring
- Dimensions: 5/16 inch
- Plating: Chromium-6 free
- Weight: 0.12 lbs
Features and Benefits
- No-Skive assembly process for easy installation
- Reduces the risk of premature hose failure
- Compatible with multiple hose types for versatile applications
- Constructed with robust steel for increased durability
- Environmentally friendly with Chromium-6 free plating
Applications
- Hydraulic system installations
- Industrial machinery and equipment
- Construction and agricultural applications
- Marine hydraulic systems
- Manufacturing and production lines
Quality and Certification
Parker is renowned for its commitment to quality and innovation. The 10543-5-4 fitting meets rigorous industry standards, ensuring reliable performance in critical applications. Manufactured under strict quality control procedures, this fitting undergoes comprehensive testing to maintain compliance with Parker’s high-quality standards.
For any questions or technical support, please contact our product specialists at (800) 823-4937
Parker 10543-5-4 43 Series SAE Fitting O-Ring 5/16 in
$12.20

Ordered a handful of these for a repair job on one of our excavators. Came in fast and every one of them seated clean with no issues.
Fit perfect on the first try, no leaks. Parker quality as expected.
Been using Parker fittings for years and these are no different — threads were clean, o-ring seated right, held pressure no problem. Good price for what you get too.
no complaints