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Tired of not having the right adapter handy? Worry no more with our ORB O-Ring Boss Thread Hydraulic Adapter Kit.
Stocked with the following fittings, you'll be ready to adapt to changing hoses and machinery.
6400-04-04 | 4 |
6400-06-06 | 4 |
6400-08-08 | 4 |
6401-04-04 | 4 |
6401-06-06 | 4 |
6401-08-08 | 4 |
6404-04-04 | 4 |
6404-06-06 | 4 |
6404-08-08 | 4 |
6801-04-04 | 4 |
6801-06-06 | 4 |
6801-08-08 | 4 |
6802-04-04 | 4 |
6802-06-06 | 4 |
6802-08-08 | 4 |
These are stored in a heavy-duty, blue metal case. This case can be used with ULINE's H-6401 Steel Cabinet. Easily store and access your hose fittings when it's time to work.
Questions & Answers

Popular Questions
10 months ago
10 months ago
The numbers on hydraulic fittings refer to the size and type of the fittings. They can indicate the fitting's thread size, pitch, and compatibility with other components. This information was sourced from "Hydraulic Hose Fittings Guide: How to Find the Right One" on the Hydraulics Direct website (https://www.hydraulicsdirect.com/Unde...), specifically under the sections "Understanding the Numbers" and "Choosing the Right Fitting". See full answer »
10 months ago
10 months ago
Identifying hydraulic fittings involves recognizing the connection style and the fitting type. Connection styles can be male or female and may have threads or be flange style, while fitting types can include elbows, tees, crosses, and others. can measure the O.D. of male fittings and I.D. of female fittings, See full answer »
10 months ago
10 months ago
The standard for hydraulic fittings is typically governed by organizations such as the International Organization for Standardization (ISO) and the Society of Automotive Engineers (SAE). Common standards include ISO 8434 for metallic tube connections and SAE J516 for hydraulic hose fittings, which ensure compatibility, reliability, and safety in hydraulic systems. See full answer »
10 months ago
10 months ago
To identify different hydraulic fittings, examine key characteristics such as thread type (e.g., NPT, BSP, JIC), size, and sealing method (e.g., O-ring, metal-to-metal). Additionally, using calipers to measure thread diameter and pitch, and referring to manufacturer specifications or fitting identification guides can help ensure accurate identification. See full answer »
9 months ago
9 months ago
Certainly! Hydraulic hose connectors come in various types, including threaded connectors like NPT (National Pipe Tapered) and BSP (British Standard Pipe), quick-disconnect couplings for easy connection and disconnection, and flanged connectors for high-pressure applications. Each type serves specific purposes and standards, ensuring compatibility and reliability in hydraulic systems. See full answer »
9 months ago
9 months ago
To determine the correct size hydraulic fitting, measure the outer diameter (OD) of the fitting's threads and the pitch (distance between threads) using calipers and a thread pitch gauge. Consult a sizing chart or the manufacturer's specifications to match these measurements to the appropriate fitting size. See full answer »
9 months ago
9 months ago
To identify the type of hydraulic fittings you have, examine the physical characteristics such as the thread type, size, and sealing method. Common fitting types include JIC, NPT, ORFS, and BSP, and using a thread identification kit or consulting a hydraulic fittings guide can help match these features to the correct fitting type. See full answer »
9 months ago
9 months ago
Hydraulic fittings are components used to connect hoses, pipes, and tubes in a hydraulic system, ensuring a secure and leak-free flow of hydraulic fluid. They come in various types, such as threaded, crimped, and flanged, and are made from materials like steel, brass, or stainless steel to withstand high pressures and corrosive environments. Proper selection and installation of hydraulic fittings are crucial for maintaining system integrity and performance. See full answer »
8 months ago
8 months ago
Certainly! JIC (Joint Industry Council) fittings have a 37-degree flare seating surface and are commonly used in North American hydraulic systems. BSP (British Standard Pipe) fittings, on the other hand, are used mainly in Europe and come in two types: BSPP (parallel) with a flat seating surface and BSPT (tapered) with a conical thread, which seal differently from JIC fittings. See full answer »
8 months ago
8 months ago
To identify hydraulic hoses, check for the printed information on the hose's surface, which typically includes the manufacturer's name, hose type, size, and pressure rating. For fittings, examine the thread type, size, and sealing method, often identified by visual inspection or using thread identification tools and charts. See full answer »
