BSP Parallel Male x JIC Bulkhead Male Straight Bulkhead Adaptor

A BSP parallel male one end and a JIC bulkhead body the other. Takes a BSP line through a panel and out to a JIC connection.

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

• BSP Parallel Male – BSPP to ISO 228. It seals on a bonded washer against the port face or on a 60° cone, never on the thread itself.
• 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.

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.
• The BSPP end needs a bonded washer or cone seat. The JIC end seals dry on its 37° cone.

Technicians Advice

Mount it and lock it off first, then do the two sealing ends. And keep sealant off the JIC cone even though the BSPP end may want a washer.

Where You’ll Find It

• BSP Parallel Male – Valve and manifold ports on Australian, British and Asian-built equipment, and most locally made hose ends. The default port thread on Australian truck and agricultural hydraulics.
• 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.

Cross-Reference

• BSP Parallel Male – BSPP to ISO 228 / BS 2779, written G. Also called BSP parallel or gas thread.
• 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.

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
BPM-JBM-0407	7/16" JIC	1/4" BSPP	56mm	22mm	22mm	Mild steel	Plated finish
BPM-JBM-0609	9/16" JIC	3/8" BSPP	56mm	22mm	22mm	Mild steel	Plated finish
BPM-JBM-0812	3/4" JIC	1/2" BSPP	62mm	24mm	24mm	Mild steel	Plated finish
BPM-JBM-0814	7/8" JIC	1/2" BSPP	mm	mm	mm	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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