The Castair JICA12X12 is a JIC A-series adapter fitting — JIC-12 on both ends. JIC-12 uses a 1-1/16-12 UNF thread and mates with 3/4-inch OD tubing flared to a 37-degree seat. The A-series designation indicates an adapter body style that may include swivel, male-female, or other orientation features — specific body configuration details for JICA12X12 were not confirmed in our manufacturer research. Call us at 866-217-0063 to confirm the exact fitting body style before ordering if orientation matters for your installation.
This is a JIC-12 to JIC-12 connection — both ends are the same size. If you need to transition from JIC-12 to a different size (JIC-10, NPT, or BSPP), see the JICA12X38BSPP or other adapter SKUs in the Castair JIC fitting lineup.
About JIC Fittings in Compressed Air Systems
JIC (Joint Industry Council) fittings use a 37-degree flare seating surface. This seating angle creates a metal-to-metal seal that is leak-resistant under pressure and does not require sealant tape or thread compound on the flare seating surface (though thread sealant is still appropriate on the straight threads in certain configurations). JIC fittings are widely used in hydraulic systems and increasingly in compressed air distribution where secure, serviceable connections are needed at equipment connections, regulator ports, and manifold tees.
The dash number in JIC sizing corresponds to the tubing OD in 1/16-inch increments: JIC-10 fits 5/8-inch OD tubing (7/8-14 UNF thread), JIC-12 fits 3/4-inch OD tubing (1-1/16-12 UNF thread).
Fitting Details
- Part Number: JICA12X12
- Connection 1: JIC-12 (1-1/16-12 UNF, 37-degree flare, 3/4-inch OD tubing)
- Connection 2: JIC-12 (1-1/16-12 UNF, 37-degree flare, 3/4-inch OD tubing)
- Series: A-series adapter (call to confirm male/female/swivel body style)
- Seating: 37-degree flare metal-to-metal seal
- Category: Air Distribution Piping / JIC Fittings
Common Applications
- JIC-12 connection points in main compressed air distribution lines
- Adapter positions in larger-bore pneumatic equipment with JIC-12 ports
- Equipment connections at compressor discharge or after-treatment equipment with JIC-12 ports
Installation Notes
- No sealant on the 37-degree flare seating surface
- Confirm body orientation (straight, elbow, swivel) matches your application before ordering
- Torque to seat the flare — not by thread compression
- Pressurize and leak-check after installation
Technical Specifications
- Part Number: JICA12X12
- Connection Type: JIC-12 x JIC-12 (A-series adapter body)
- Thread Size: 1-1/16-12 UNF (both ends)
- Flare Angle: 37 degrees
- Tubing OD (nominal): 3/4 inch
- Body style: Contact us to confirm — call 866-217-0063
Why Buy From Air Compressor Factory Direct?
We stock Castair air distribution fittings and accessories. If you're planning or expanding your shop's compressed air piping system, we can help you spec the right fitting combinations for your line sizes and equipment. Free shipping on qualifying orders. Call 866-217-0063 for help selecting the right fittings for your installation.
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