BSP Parallel Male x ORFS Male 90° Compact Elbow

BSPP into the port, ORFS flat face out to the hose, at 90°. Fitted where a machine has been upgraded to O-ring face seal hose ends but the ports remain BSP, which is increasingly common on rebuilt and re-hosed plant.

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

Watch: Exploring Hydraulic Adaptors Part 1: Difference Between Branch Tee & Run Tee, Elbows Short and Long

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.
• 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

• Two soft seals and no tape: a bonded washer at the BSPP end, a face O-ring at the ORFS end.
• Match the ORFS flat face diameter, not just the thread. ORFS threads repeat across different face sizes.
• Check the face O-ring is present and seated before assembly.

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.
• ORFS Male – High-pressure, high-vibration circuits on late-model excavators, drill rigs, crushers and forestry gear.

Cross-Reference

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

Technicians Advice

ORFS is chosen because it survives vibration better than a cone. That advantage disappears if the O-ring is nicked going on, so wipe the face, roll the O-ring into its groove rather than stretching it over the thread, and bring the nut up square.

📐Dimensions & thread sizes – every size in this range

← Swipe the table sideways to see every measurement →

Part code	A thread	B thread	H	S1
BPM-ORM-90C-0209	9/16" ORFS	1/8" BSPP	14mm	14mm
BPM-ORM-90C-0409	9/16" ORFS	1/4" BSPP	19mm	14mm
BPM-ORM-90C-0411	11/16" ORFS	1/4" BSPP	19mm	19mm
BPM-ORM-90C-0413	13/16" ORFS	1/4" BSPP	19mm	19mm
BPM-ORM-90C-0609	9/16" ORFS	3/8" BSPP	22mm	19mm
BPM-ORM-90C-0611	11/16" ORFS	3/8" BSPP	22mm	19mm
BPM-ORM-90C-0613	13/16" ORFS	3/8" BSPP	22mm	19mm
BPM-ORM-90C-0811	11/16" ORFS	1/2" BSPP	27mm	22mm
BPM-ORM-90C-0813	13/16" ORFS	1/2" BSPP	27mm	22mm
BPM-ORM-90C-0816	1" ORFS	1/2" BSPP	27mm	27mm
BPM-ORM-90C-0819	1.3/16" ORFS	1/2" BSPP	27mm	30mm
BPM-ORM-90C-1213	13/16" ORFS	3/4" BSPP	32mm	27mm
BPM-ORM-90C-1216	1" ORFS	3/4" BSPP	32mm	27mm
BPM-ORM-90C-1219	1.3/16" ORFS	3/4" BSPP	32mm	30mm
BPM-ORM-90C-1223	1.7/16" ORFS	3/4" BSPP	32mm	36mm
BPM-ORM-90C-1619	1.3/16" ORFS	1" BSPP	41mm	33mm
BPM-ORM-90C-1623	1.7/16" ORFS	1" BSPP	41mm	36mm

All dimensions in millimetres: H centre to face, S1 second hex across flats. Hex across flats is the spanner size. Thread columns show what each end mates with. Dimensions are nominal – check critical clearances against the part.

Downloads

📄 Thread Identification Chart (PDF)

Same Threads, Other Angles

🔗 Straight – same threads🔗 45° Compact – same threads

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Need a hand? Call 1300 146 737 or email sales@mhfgc.com.au – real technicians, real answers.