ORFS Bulkhead Male x ORFS Male Straight Bulkhead Adaptor

An ORFS bulkhead body one end and an ORFS male the other. The face-seal panel pass-through, used on late-model machinery where vibration rules out thread-sealed joints.

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

• ORFS Bulkhead Male – SAE J1453 O-ring face seal on a bulkhead body with a locknut. It seals on the O-ring in the flat face; the bulkhead thread and locknut only clamp the part to the panel.
• ORFS Male – SAE J1453 O-ring face seal. It seals on an O-ring sitting in the flat face groove, never on the thread.

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 on an O-ring in the mating flat face. Nothing goes on any thread here.
• ORFS thread size and line size are different numbers, so work to the dash size on the hose.

Technicians Advice

Mount and lock it off before the hoses go on. A face seal does not tolerate being loaded off-square while you wrestle the body straight, and the ring will show a witness mark that never fully seals afterwards.

Where You’ll Find It

• ORFS Bulkhead Male – panel and chassis pass-throughs on late-model machinery built on ORFS – excavators, loaders and truck-mounted equipment where vibration rules out thread-sealed joints.
• ORFS Male – High-pressure, high-vibration circuits on late-model excavators, drill rigs, crushers and forestry gear.

Cross-Reference

• ORFS Bulkhead Male – SAE J1453 O-ring face seal, bulkhead style. Often written ORFS BH or O-ring face seal bulkhead. The face seal does the work, the locknut does not.
• ORFS Male – SAE J1453 / ISO 8434-3 O-ring face seal. Parker call this series Seal-Lok. Also written ORFS or flat face.

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
OBM-ORM-0909	–	–	48mm	20.6mm	20.6mm	Mild steel	Plated finish
OBM-ORM-1111	–	–	53mm	25.4mm	25.4mm	Mild steel	Plated finish
ORM-OBM-1313	–	–	58mm	28.6mm	28.6mm	Mild steel	Plated finish
ORM-OBM-1316	13/16" ORFS	1" ORFS	–	–	–	Mild steel	Plated finish
ORM-OBM-1616	–	–	67mm	33.3mm	33.3mm	Mild steel	Plated finish
ORM-OBM-1619	1" ORFS	1.3/16" ORFS	–	–	–	Mild steel	Plated finish
ORM-OBM-1919	–	–	69mm	38.1mm	38.1mm	Mild steel	Plated finish
ORM-OBM-2323	–	–	69mm	44.5mm	44.5mm	Mild steel	Plated finish
ORM-OBM-2727	–	–	70mm	50.8mm	50.8mm	Mild steel	Plated finish
ORM-OBM-3232	–	–	70mm	60.3mm	60.3mm	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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