SMC 6-6N
Stainless Steel Male Connector – 3/8" Tube x 3/8" MNPT
- Model: SMC 6-6N (3/8" tube OD (Outer Diameter) x 3/8" Male National Pipe Taper (MNPT))
- Type: Straight Tube-to-Male NPT Connector
- Material: 316 Stainless Steel (corrosion-resistant alloy)
- Pressure Rating: Based on tubing wall and installation torque
- Design: Straight-body connector with compression tube end and tapered pipe thread
- Finish: Machined and polished for sanitary and industrial compatibility
| End Size | 44263in |
|---|---|
| End Type | National Pipe Thread (NPT) |
| Inch/Metric | Inch |
| Tube Outside Diameter D | 3/8in, mm |
| Width Across Flats h | 11/16in, mm |
| Dimension A | 16.76mm |
|---|---|
| Dimension B | 19.30mm |
| Dimension I | 32.51mm |
| Dimension L | 39.87mm |
| Dimension d [Min] | 7.11mm |
Stainless Steel Male Connector – 3/8" Tube x 3/8" MNPT (SMC 6-6N)
The SMC 6-6N is a stainless steel male connector engineered for clean, leak-tight transitions between 3/8" tubing and 3/8" Male National Pipe Taper (MNPT) threaded ports. Designed for tight pressure system builds, this straight connector delivers strength and reliability in both hygienic and industrial applications.
Crafted from 316 stainless steel, it resists corrosion, vibration, and thermal stress—ideal for Clean-in-Place (CIP) loops, fluid panels, and high-pressure gas or liquid systems. Its compression end connects seamlessly to stainless tubing, while the tapered MNPT threads ensure tight sealing in threaded ports without the risk of backing off under pressure.
Commonly used in Original Equipment Manufacturer (OEM) systems, this part allows engineers to integrate pipe-threaded devices like regulators, valves, or gauges into rigid tubing lines.
Key Benefits
- Connects 3/8" stainless tubing to 3/8" MNPT-threaded ports
- Dual-ferrule compression seal offers leak-tight, reusable performance
- MNPT thread provides pressure-rated sealing with thread compound or tape
- Made from 316 stainless steel for long-term chemical and mechanical resistance
- Ideal for field replacements, OEM builds, and hygienic or utility systems
- Polished and passivated for food, pharma, or industrial-grade use
Typical Applications
- Instrumentation tubing runs
- Skid-mounted OEM fluid assemblies
- Clean-in-Place (CIP) system routing
- Gas panel ports and sensor manifolds
- Lab, biotech, or industrial-grade fluid lines
The SMC 6-6N offers the same stainless steel strength and pressure-rated performance—backed by clean machining and consistent sealing.
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| Swagelok® | 600-1-6 |
|---|---|
| Parker (Alok)® | 6MSC6N |
| Hy-Lok® | CMC 6-6N |
| Tylok (CBC-Lok)® | 6-COS-6 |
| Ham-Let (Let-Lok)® | 768L 3/8 X 3/8 |
| Hoke (Gyrolok)® | 6CM6 |
| Dk-Lok® | COS6-6N |
| Bi-Lok (Series D)® | DCT-6-6 |
| SSP (DUlok)® | D6MC6 |
