Shop High Pressure Adapters, Male JIC x Female JIC

The JIC Male to JIC Female OneXtreme Adapters are precision-engineered fittings designed to extend, adapt, or transition JIC 37° flare connections in hydraulic and fluid power systems requiring dependable, leak-free performance. JIC (Joint Industry Council) fittings utilize a 37-degree cone seat to create a reliable metal-to-metal seal without the need for additional sealing compounds, making them ideal for applications with working pressures up to 15,000 psi (689 bar).


Manufactured from cold worked 316 stainless steel, these adapters deliver exceptional strength, corrosion resistance, and durability in demanding environments such as industrial equipment, mobile hydraulics, and chemical processing systems. OneXtreme JIC adapters are machined for precise fit and repeatable sealing integrity, with special materials available upon request to meet specific application or environmental requirements.

NOTE: Proper alignment and torque are critical. Over-tightening, misalignment, or using damaged flare surfaces can compromise the seal and lead to leaks or system failure. Always verify compatibility with mating components and follow recommended installation practices before use.

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High Pressure Adapters

Up to 15,000psi (varies by size)

1/4" to 1" 

316 Stainless Steel (Customs available upon Request)

Click HERE to view the OneXtreme Catalog

Click HERE to view the entire High Pressure MJIC-FJIC Collection

Series 501, Male JIC x Female JIC 

Click on the model number in the chart below to view that adapter. 

ALL ADAPTERS SHOWN BELOW ARE 316 STAINLESS, MADE IN USA.

Product SKU Male JIC Side Female JIC Side Pressure Rating Lead Time Price
X6J04JF15 0.375 (3/8") 0.25 (1/4") 15000 4-6 Weeks $48.09
X6J06JF15 0.375 (3/8") 0.75 (3/4") 15000 4-6 Weeks $58.42
X6J08JF15 0.375 (3/8") 0.5 (1/2") 15000 4-6 Weeks $51.08
X8J06JF15 0.5 (1/2") 0.75 (3/4") 15000 4-6 Weeks $50.78
X8J08JF15 0.5 (1/2") 0.5 (1/2") 15000 4-6 Weeks $60.08
X12J12JF10 0.75 (3/4") 0.75 (3/4") 10000 4-6 Weeks $57.54
X12J16JF10 0.75 (3/4") 1 10000 4-6 Weeks $100.18
X16J16JF10 1 1 10000 4-6 Weeks $101.95
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Technical Specs




Still need help? Give us a call at 281.941.2310 or email us at sales@onehydraulics.com for technical support.