JIC 37° Male x NPT Tapered Male x JIC 37° Male Run Tee

An NPT tapered male in the middle with a JIC male at each end. Screws into an American pipe-thread port and carries a JIC line past it.

Brand: Ayrtec – mild steel body with a plated finish, manufactured to the standards listed below.

Watch: How to assemble Hydraulic Hose Fittings Introduction Identification and Guide on JIC thread Type

Thread Standards

• JIC 37° Male – SAE J514 37° flare. It seals metal-to-metal on the 37° cone, so it takes no tape at all.
• NPT Tapered Male – ANSI/ASME B1.20.1 tapered pipe thread. It seals on thread interference, so tape or sealant is a must.

How to Choose

• On a run tee the odd port sits in the middle of the run and the two matching ports are the ends. It is the opposite layout to a branch tee, so check which one the job needs before you order.
• The NPT leg seals on the thread and needs sealant. The JIC ends seal dry on their cones.
• NPT is 60° and BSPT is 55°. Confirm the port before you wind it in.

Technicians Advice

Do the NPT leg first, wipe your hands, then the cones. Keep tape back off the first two threads so nothing shears into the circuit as it winds in.

Where You’ll Find It

• JIC 37° Male – Hose ends and ports on imported US and Asian machinery – Caterpillar, John Deere, Case IH, New Holland, Bobcat, Kubota, Takeuchi.
• NPT Tapered Male – American-built gearboxes, pumps, compressors and older industrial pipework.

Cross-Reference

• JIC 37° Male – SAE J514 / ISO 8434-2 37° flare. Parker call this series Triple-Lok. The industrial cousin of the AN 37° flare used in aviation and motorsport.
• NPT Tapered Male – ANSI/ASME B1.20.1 tapered pipe thread. The dryseal variant is written NPTF.

Parker, Gates, Aeroquip and Ryco all manufacture to these same standards under their own part numbering, so a fitting built to the standard above will mate with theirs.

Cross-references are given at series level as a guide to the standard, not as a part-for-part substitution. Always confirm the thread form, size and seal type against the port before ordering.

📐Dimensions & thread sizes – every size in this range

← Swipe the table sideways to see every measurement →

Part code	A	B	S1	C	Material	Finish
JIM-NTM-JIM-070207	7/16" JIC	1/8" NPT	11.1mm	7/16" JIC	Mild steel	Plated finish
JIM-NTM-JIM-070407	7/16" JIC	1/4" NPT	14.3mm	7/16" JIC	Mild steel	Plated finish
JIM-NTM-JIM-090409	9/16" JIC	1/4" NPT	14.3mm	9/16" JIC	Mild steel	Plated finish
JIM-NTM-JIM-090609	9/16" JIC	3/8" NPT	19.1mm	9/16" JIC	Mild steel	Plated finish
JIM-NTM-JIM-120612	3/4" JIC	3/8" NPT	19.1mm	3/4" JIC	Mild steel	Plated finish
JIM-NTM-JIM-120812	3/4" JIC	1/2" NPT	22.2mm	3/4" JIC	Mild steel	Plated finish
JIM-NTM-JIM-171217	1.1/16" JIC	3/4" NPT	27.0mm	1.1/16" JIC	Mild steel	Plated finish

Key: S1 hex across flats 2, C across corners. Measurements in millimetres unless shown otherwise. Thread columns show what each end mates with. Dimensions are nominal – check critical clearances against the part.

Downloads

📄 Thread Identification Chart (PDF)

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