1405 NPTF Female to NPSM Female Swivel Straight Adapter | Hydraulic Fittings
The 1405 NPTF Pipe Female to NPSM Pipe Swivel Straight Adapter Female is a precision hydraulic adapter designed for connecting female NPTF (National Pipe Taper Fuel) pipe threads to female NPSM (National Pipe Straight Mechanical) swivel threads in a straight-through configuration.
These adapters are commonly used in lubrication lines, instrumentation systems, and high-pressure hydraulic circuits that require reliable sealing and ease of assembly.
Connection Description & Function
- End 1: Female NPTF pipe thread (tapered)
- End 2: Female NPSM pipe swivel (straight, mechanical seal)
- Configuration: Straight adapter
- Swivel end allows easier alignment and tightening
- Designed to adapt two common pipe thread standards in hydraulic systems
Applications
This adapter series is suitable for a wide range of fluid power and hydraulic systems, including:
- Lubrication lines
- Instrumentation and control systems
- High-pressure hydraulic circuits
- Industrial fluid transfer systems
- Mobile and construction hydraulics
- Systems requiring reliable swivel alignment during assembly
Pressure Ratings
- Working pressures: Rated up to 5000 PSI
- Actual pressure capability varies depending on:
- Fitting size
- Line conditions
- Working environment
- Suitable for standard and many extreme pressure applications when sized properly
Key Features & Benefits
- Connects female NPTF pipe threads to female NPSM swivel threads
- Swivel design aids installation and reduces thread stress
- Straight adapter provides direct flow path
- Suitable for lubrication, instrumentation, and hydraulic applications
- Common sizes range from 1/8” to 2” to match standard pipe requirements
Typical Use Tips
- Match sizes correctly to ensure a secure fluid connection
- Use a backup wrench on the swivel end to avoid torque stress
- Thread sealant or tape may be required on NPTF connections depending on sealing requirements and mating components
NPTF threads provide a dryseal (metal-to-metal) connection when paired with compatible male fittings, while the NPSM female swivel end allows flexible alignment and installation without inducing stress on tubing or hose assemblies.