JIC Bulkhead Male x JIC 37° Male Straight Bulkhead Adaptor

A JIC bulkhead body one end and a JIC male the other. The standard way a JIC line passes through a panel, chassis rail or tank wall and is supported there.

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

Watch: The Advantages of Hydraulic Bulkhead Fittings: Essential Components for Fluid Systems

Thread Standards

• JIC 37° Bulkhead Male – SAE J514 37° flare on a bulkhead body with a locknut. It seals on the 37° cone at each end; the bulkhead body passes through a panel and is held by a locknut, which does no sealing.
• JIC 37° Male – SAE J514 37° flare. It seals metal-to-metal on the 37° cone, so it takes no tape at all.

How to Choose

• The bulkhead thread and locknut clamp the fitting to the panel. They do no sealing, so do not try to cure a leak by tightening the locknut.
• Check your panel hole size and thickness before you order. The body has a set thread length under the shoulder and a thick panel eats it.
• Both ends seal metal to metal on the 37° cone. No tape, no sealant, anywhere on this part.

Technicians Advice

Get it through the panel and the locknut nipped before any hose goes on. Once both ends are connected you have nothing clean to hold, and cranking the locknut against a loaded fitting distorts the body.

Where You’ll Find It

• JIC 37° Bulkhead Male – anywhere a line has to pass through a panel, chassis rail, tank wall or guard and be supported there – tractors, harvesters, truck bodies, tank installations and any tidy machine build.
• JIC 37° Male – Hose ends and ports on imported US and Asian machinery – Caterpillar, John Deere, Case IH, New Holland, Bobcat, Kubota, Takeuchi.

Cross-Reference

• JIC 37° Bulkhead Male – SAE J514 37° bulkhead. Parker call the 37° range Triple-Lok. The long thread under the cone is for the panel and the locknut, not for sealing.
• 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.

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	L	H	H1	Material	Finish
JBM-JIM-0707	7/16" JIC	7/16" JIC	53mm	17.5mm	17.5mm	Mild steel	Plated finish
JBM-JIM-0808	1/2" JIC	1/2" JIC	53mm	19.1mm	19.1mm	Mild steel	Plated finish
JBM-JIM-0909	9/16" JIC	9/16" JIC	55mm	20.6mm	20.6mm	Mild steel	Plated finish
JBM-JIM-1212	3/4" JIC	3/4" JIC	62mm	25.4mm	25.4mm	Mild steel	Plated finish
JBM-JIM-1414	7/8" JIC	7/8" JIC	70mm	28.6mm	28.6mm	Mild steel	Plated finish
JBM-JIM-1717	1.1/16" JIC	1.1/16" JIC	78mm	34.9mm	34.9mm	Mild steel	Plated finish
JBM-JIM-2121	1.5/16" JIC	1.5/16" JIC	80mm	41.3mm	41.3mm	Mild steel	Plated finish
JBM-JIM-2626	1.5/8" JIC	1.5/8" JIC	84mm	47.6mm	47.6mm	Mild steel	Plated finish
JBM-JIM-3030	1.7/8" JIC	1.7/8" JIC	89mm	54mm	54mm	Mild steel	Plated finish
JBM-JIM-4040	2.1/2" JIC	2.1/2" JIC	107mm	69.9mm	69.9mm	Mild steel	Plated finish

Key: L overall length, H centre to face, H1 centre to face 2. 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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