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Product Name | Sanheng Hydraulic 74° 2404 MJ-MP / 1JN JIC NPT Male Pipe Adapter |
Code | 1JN |
Material & Surface Treatment | Carbon steel (zinc plated Cr3+); Stainless steel (passivation) |
Application | Pipe connection（oil,water,gas） |
Technology | CNC machining & Forged |
Package | All adapters equipped with thread protective end caps, inside plastic bags, and then inside standard blank carton boxes. |
Our main products | Threaded hydraulic hose fittings and pipe adapters, sucn as Metric , BSP, BSPT, NPT , JIC , ORFS, SAE thread. |
The 1JN / 2404 adapter is a professional thread conversion fitting designed for high-pressure hydraulic fluid systems, adopting 74° JIC male 37° flare cone transitioning to standard NPT male thread. Made of integrally forged raw material with high-precision CNC thread processing, it features solid structure, high density and outstanding shock resistance. The standard 74° cone forms rigid metal-to-metal sealing, effectively solving micro-leakage troubles in long-term vibration working conditions. With eco-friendly surface treatment and excellent salt spray corrosion resistance, it is applicable for oil, water and gas medium delivery. Fully interchangeable with mainstream international brand models, it simplifies equipment maintenance replacement and keeps hydraulic systems running stably and efficiently under heavy-duty working loads.
Manufactured in full compliance with SAE and ASME international industry standards, all dimensions and thread tolerances are strictly controlled. The product passes 96-hour professional salt spray testing with reliable corrosion resistance. Complete dimensional drawings, thread parameters and pressure rating data can be provided according to customer model requirements, supporting direct replacement and matching of old equipment parts.
Dual Thread Conversion Design: Integrates 74° JIC flare cone and NPT male thread, realizing fast switching between two mainstream standards without extra transition fittings.
Smooth Thread Matching: Precision cutting ensures seamless thread engagement, avoiding cross-threading and galling, saving assembly time and labor cost.
Strong Vibration & Shock Resistance: Forged integrated body disperses mechanical impact, keeping the connection tight and not loose for long-term operation of mobile heavy machinery.
Optimized Internal Flow Path: Inner hole fine finishing reduces fluid turbulence and pressure loss, improving overall working efficiency of hydraulic power systems.
Carbon Steel (Cr3+ Zinc Plated)
Adopts environmentally friendly trivalent zinc plating process, passing 96-hour salt spray test, with good anti-oxidation and anti-rust performance, stable mechanical strength, cost-effective for general industrial hydraulic pipeline use.
316L Stainless Steel (Passivation)
After strict passivation treatment, it has superior acid, alkali and salt spray resistance, effectively adapting to marine, petrochemical and other high-corrosion harsh working environments, and avoiding fluid pipeline internal contamination.
This JIC to NPT male thread adapter is widely used for standard conversion and pipeline connection in high-pressure fluid systems of multiple core industries:
Engineering & Agricultural Machinery: Hydraulic pipeline matching and replacement for excavators, harvesters, tractors and other mobile heavy equipment.
Factory Automated Manufacturing: Hydraulic circuit connection, compressed air and circulating water pipeline standard conversion for machine tools and production lines.
Petrochemical Industry: Oil and gas transmission pipelines, chemical medium delivery systems, adapting to high pressure and complex medium working conditions.
Mining & Marine Engineering: Fluid system thread conversion for mining equipment, ship and offshore platform hydraulic supporting pipelines.
Adopts high-tonnage integral forging to optimize metal internal grain structure, enhance pressure resistance and structural toughness. JIC cone sealing surface and NPT threads are processed by multi-axis CNC lathes with high dimensional accuracy. Each batch undergoes strict thread gauge inspection, pressure sealing test and salt spray detection, fully meeting international standard specifications, ensuring long-term leak-free and stable operation.
To assist your procurement and engineering teams, we have compiled detailed answers to the most common inquiries regarding our hydraulic adapters and manufacturing capabilities.
Our quality assurance laboratory utilizes automated salt fog chambers calibrated to international testing standards. We continuously monitor the temperature, saline concentration, and pH levels during the 96-hour cycle to guarantee the surface treatment's integrity.
Ensures the Cr3+ zinc plating maintains its protective barrier.
Verifies that no red rust appears on the critical thread surfaces.
We utilize high-precision fiber laser engraving machines directly on our production line. You simply provide your vector logo or part number formatting, and we permanently etch it onto the hex body of the adapter before final packaging.
Creates a clean, high-contrast mark that resists fading from oil and friction.
Enhances your brand visibility and aids in rapid part identification in the field.
Absolutely. We highly encourage rigorous physical evaluation before you scale up your purchasing. You can select an assortment of sizes, such as the 1JN-04, 1JN-08, and 1JN-12, to test across your various equipment.
Samples are provided at a minimal, reasonable charge with freight on your account.
Allows your engineers to verify the torque feel and leak-proof seal firsthand.
Our engineering department thrives on solving custom fluid routing challenges. Through our comprehensive OEM/ODM services, we can modify thread lengths, hex sizes, or cone angles based on your technical drawings.
Dedicated designers assist in prototyping your custom fitting.
Custom forging molds and CNC programming are rapidly deployed to minimize lead times.
We leverage advanced production planning systems to monitor global demand trends and maintain a robust buffer stock of conventional sizes in our Ningbo warehouse. This proactive manufacturing approach ensures our shelves are always loaded.
Enables immediate dispatch for urgent, small-batch repair orders.
Provides immense flexibility for your just-in-time inventory strategies.
