Shop 6425 Straight Female ORB - Female ORB

The Series 6425 Straight Female SAE ORB x Female SAE ORB adapters in carbon steel are high-performance fittings designed to provide secure, leak-free connections in medium and high-pressure hydraulic systems. These adapters use SAE J1926 Straight Thread O-Ring Boss (ORB) connections, which are recommended by the National Fire Protection Association (NFPA) for leak prevention. The male side of the connection features a straight thread with an O-ring, while the female side has a straight thread with a machined surface and chamfer where the O-ring seats. When the components are connected, the O-ring is compressed into the chamfer, forming a reliable mechanical seal. Made from durable carbon steel, these adapters are ideal for industrial applications that require strong, long-lasting connections.

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Straight FORB - FORB Rigid

3/8" to 5/8" Nominal Tube OD

Carbon Steel

Click HERE to view the entire 6425 Straight Carbon Steel FORB-FORB Selection

Click HERE to view the entire 6425-SS Straight Stainless Steel FORB-FORB Selection

Shop 6425 Straight Female ORB - Female ORB, Carbon Steel

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


Product SKU ▼ Brand ▼ Material ▼ Female ORB Threads ▼ Female ORB Threads ▼ Pressure Rating ▼ Lead Time ▼ Price ▼
6425-04-04 Brennan Steel 7/16-20 (-04) 7/16-20 (-04) Call to Verify 1-3 Days $3.76
6425-06-06 Brennan Steel 9/16-18 (-06) 9/16-18 (-06) Call to Verify Same Day $4.52
6425-08-08 Brennan Steel 3/4-16 (-08) 3/4-16 (-08) 5000 1-3 Days $5.62
6425-10-10 Brennan Steel 7/8-14 (-10) 7/8-14 (-10) 4500 1-3 Days $7.27
6425-12-12 Brennan Steel 1-1/16-12 (-12) 1-1/16-12 (-12) Call to Verify 1-3 Days $7.72
6425-16-16 Brennan Steel 1-5/16-12 (-16) 1-5/16-12 (-16) Call to Verify 1-3 Days $10.52
6425-20-20 Brennan Steel 1-5/8-12 (-20) 1-5/8-12 (-20) Call to Verify 1-3 Days $92.13
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See the chart below for additional Dimensional Detail & Pressure Ratings




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