Metric Heavy (S) Male x NPT Tapered Male 90° Compact Elbow

European metric one end, American NPT the other, turned 90°. The fitting for machines that have been rebuilt with mixed hydraulics, which is most imported plant after a few years in service.

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

• Metric Heavy (S) Male – DIN 2353 / ISO 8434-1 24° cone, heavy series. It seals on the 24° cone and is built for higher pressures than the light series.
• NPT Tapered Male – ANSI/ASME B1.20.1 tapered pipe thread. It seals on thread interference, so tape or sealant is a must.

How to Choose

• The NPT end takes tape or sealant. The metric 24° cone must stay dry.
• Confirm the metric series - heavy (S) here, and a light-series part is not a substitute on a pressure line.
• NPT sizes are nominal, so do not size them off a caliper reading alone.

Technicians Advice

Two completely different sealing systems on one fitting is where mistakes happen. Tape the NPT end only. If the metric end weeps, pull it apart and look at the cone for a witness mark - more torque on a 24° cone just flattens it.

Where You’ll Find It

• Metric Heavy (S) Male – European machinery on the pressure side, where working pressures exceed the light series rating.
• NPT Tapered Male – American-built gearboxes, pumps, compressors and older industrial pipework.

Cross-Reference

• Metric Heavy (S) Male – DIN 2353 / ISO 8434-1 24° cone, heavy (S) series. Parker EO / EO-2.
• NPT Tapered Male – ANSI/ASME B1.20.1 tapered pipe thread. The dryseal variant is written NPTF.

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	S	Material	Finish
MHM-NTM-90C-1404	M14x1.5 (6S)	1/4" NPT	12mm	Mild steel	Plated finish
MHM-NTM-90C-1604	M16x1.5 (8S)	1/4" NPT	14mm	Mild steel	Plated finish
MHM-NTM-90C-1806	M18x1.5 (10S)	3/8" NPT	17mm	Mild steel	Plated finish
MHM-NTM-90C-2006	M20x1.5 (12S)	3/8" NPT	19mm	Mild steel	Plated finish
MHM-NTM-90C-2008	M20x1.5 (12S)	1/2" NPT	19mm	Mild steel	Plated finish
MHM-NTM-90C-2206	M22x1.5 (14S)	3/8" NPT	19mm	Mild steel	Plated finish
MHM-NTM-90C-2208	M22x1.5 (14S)	1/2" NPT	19mm	Mild steel	Plated finish
MHM-NTM-90C-2406	M24x1.5 (16S)	3/8" NPT	24mm	Mild steel	Plated finish
MHM-NTM-90C-2408	M24x1.5 (16S)	1/2" NPT	24mm	Mild steel	Plated finish
MHM-NTM-90C-3008	M30x2 (20S)	1/2" NPT	27mm	Mild steel	Plated finish
MHM-NTM-90C-3012	M30x2 (20S)	3/4" NPT	27mm	Mild steel	Plated finish
MHM-NTM-90C-3612	M36x2 (25S)	3/4" NPT	36mm	Mild steel	Plated finish
MHM-NTM-90C-3616	M36x2 (25S)	1" NPT	36mm	Mild steel	Plated finish
MHM-NTM-90C-4216	M42x2 (30S)	1" NPT	41mm	Mild steel	Plated finish
MHM-NTM-90C-4220	M42x2 (30S)	1.1/4" NPT	41mm	Mild steel	Plated finish
MHM-NTM-90C-5224	M52x2 (38S)	1.1/2" NPT	50mm	Mild steel	Plated finish

Key: S hex across flats. 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)

Same Threads, Other Angles

🔗 Straight – same threads

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