JIC 37° Male x JIC 37° Male x UNO O-Ring Boss Male Branch Tee

Two JIC male ports in line with a UNO O-ring boss male on the branch. Bolts into a UNO port on an American pump, motor or valve and gives you a JIC run straight off it.

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

Watch: Stop Leaks! Connect Your JIC Hose to UNO Ports with These Adapters

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.
• SAE O-Ring Boss Male (UNO/UNF) – SAE J1926 / ISO 11926 straight thread O-ring boss. It seals on an O-ring squeezed against the port spotface, not on the thread.

How to Choose

• On a branch tee the two in-line ports carry the main flow and the third port comes off the side at 90°. Get that the wrong way round and the tee physically will not fit the run.
• The UNO branch seals on its O-ring at the port spotface. The two JIC ports seal on their cones. No sealant anywhere.
• Check the UNO port spotface for nicks before you fit. A scored face weeps past a good ring.
• A UNO male will start into a BSPP port and strip, so check the callout.

Technicians Advice

Seat the UNO branch properly first, ring just kissing the spotface then the specified turn, and stop. Once the hoses are on you cannot get a spanner squarely on that branch to correct it.

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.
• SAE O-Ring Boss Male (UNO/UNF) – Cylinder end caps, pump and valve bosses on US-built plant. Common on Australian-assembled cylinders too, where it is usually called UNO.

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.
• SAE O-Ring Boss Male (UNO/UNF) – SAE J1926 / ISO 11926 straight thread O-ring boss. Also written ORB, SAE ORB or UNO. Thread form is UN/UNF.

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	H	S1	C	Material	Finish
JIM-JIM-UNM-070707	7/16" JIC	7/16" JIC	14.3mm	11.1mm	7/16" UNO	Mild steel	Plated finish
JIM-JIM-UNM-090909	9/16" JIC	9/16" JIC	17.5mm	14.3mm	9/16" UNO	Mild steel	Plated finish
JIM-JIM-UNM-090912	9/16" JIC	9/16" JIC	22.2mm	19.1mm	3/4" UNO	Mild steel	Plated finish
JIM-JIM-UNM-121212	3/4" JIC	3/4" JIC	22.2mm	19.1mm	3/4" UNO	Mild steel	Plated finish
JIM-JIM-UNM-121214	3/4" JIC	3/4" JIC	25.4mm	22.2mm	7/8" UNO	Mild steel	Plated finish
JIM-JIM-UNM-141414	7/8" JIC	7/8" JIC	25.4mm	22.2mm	7/8" UNO	Mild steel	Plated finish
JIM-JIM-UNM-171717	1.1/16" JIC	1.1/16" JIC	31.8mm	27.0mm	1.1/16" UNO	Mild steel	Plated finish
JIM-JIM-UNM-212121	1.5/16" JIC	1.5/16" JIC	38.1mm	33.3mm	1.5/16" UNO	Mild steel	Plated finish
JIM-JIM-UNM-262626	1.5/8" JIC	1.5/8" JIC	47.6mm	41.3mm	1.5/8" UNO	Mild steel	Plated finish
JIM-JIM-UNM-303030	1.7/8" JIC	1.7/8" JIC	54.0mm	47.6mm	1.7/8" UNO	Mild steel	Plated finish

Key: H centre to face, 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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