Description
NPTF Male Hose Fittings for Two-Piece Assemblies
Our fitting catalogue lists NPTF male rigid and male swivel ends for braided hydraulic hose assemblies. NPTF is a tapered dryseal pipe-thread connection; do not substitute it for BSP simply because a thread appears to start. Confirm the mating port, thread form, hose series and approved crimp components before replacing a line.
Catalogue comparison
| Catalogue family | End form | What to identify |
|---|---|---|
| 15611F | Male rigid | NPTF thread size and pitch, hose DN/dash size, stem and ferrule |
| 15611SW-F | Male swivel | Matching port, swivel clearance, hose size and assembly orientation |
The catalogue lists rigid-series hose sizes from DN 6 (-04) to DN 50 (-32), with thread and dimensions varying by part number. For example, the 15611-F04-04Z row shows 1/4-18 thread with DN 6 (-04) hose. This is one listed combination, not a universal size or working-pressure claim.
Selection and failure checks
| Field symptom | Check before replacement | Action |
|---|---|---|
| Leak at the port | Thread standard, pitch, taper, damage and connection procedure | Isolate pressure; identify both mating ends and replace incompatible parts. |
| Leak at the crimp | Hose series, stem, ferrule, insertion and target crimp diameter | Rebuild with an approved hose/fitting combination; do not tighten the port to fix a crimp leak. |
| Repeated early failure | Pressure impulse, vibration, routing and bend near the fitting | Correct the circuit/routing cause before making another assembly. |
For an Indonesia quotation, send the existing fitting marking, clear photos of the thread and port, hose DN, line pressure, fluid, overall assembly length and quantity. Our Surabaya team can review the identification before selecting a part number.
Compare BSP 60-degree cone fittings and braided hose fittings. See the hydraulic hose assembly shop solution for workshop identification and crimp-control steps.
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