SBFC 4-4N
Stainless Steel Bulkhead Female Connector – 1/4" Tube x 1/4" FNPT
- Model: SBFC 4-4N (1/4″ tube OD x 1/4″ Female NPT)
- Type: Bulkhead Female Connector (compression to Female National Pipe Taper (FNPT))
- Material: 316 Stainless Steel (corrosion-resistant alloy)
- Pressure Rating: Based on tubing and installation conditions
- Mounting Style: Panel-mount with body threads and locknut
- Finish: Machined and polished for clean fluid system integration
| End Size | 1/4in |
|---|---|
| End Type | National Pipe Thread (NPT) |
| Inch/Metric | Inch |
| Pannel Hole Drill Size | 11.50mm |
| Pannel Thickness [Max] | 10.16mm |
| Tube Outside Diameter D | 1/4in |
| Width Across Flats h | 3/4in, mm |
| Width Across Flats h1 | 5/8in, mm |
| Dimension A | 15.24mm |
|---|---|
| Dimension I | 44.45mm |
| Dimension I1 | 26.16mm |
| Dimension L | 51.81mm |
| Dimension L1 | 33.52mm |
| Dimension d [Min] | 4.82mm |
Stainless Steel Bulkhead Female Connector – 1/4" Tube x 1/4" FNPT (SBFC 4-4N)
This connector is designed to provide a reliable transition from 1/4″ tubing to 1/4″ female NPT threads through fixed panels, enclosures, or equipment walls. Built from 316 stainless steel, it combines corrosion resistance with long-term strength, making it suitable for both sanitary and industrial environments. The dual-ferrule compression end delivers a leak-tight, metal-to-metal seal that withstands vibration, thermal cycling, and exposure to aggressive media.
Its integral locknut and body threads allow for firm mounting through skid frames, cabinets, or instrumentation boxes, ensuring that tubing connections remain stable under pressure. By creating a clean and secure passage point through barriers, this fitting helps engineers maintain organized layouts while protecting system integrity on both sides of the wall. Precision machining supports repeatable installation without the use of sealants on the compression side, simplifying service while preserving cleanliness in hygienic applications.
The connector is frequently used in instrumentation builds, test stands, OEM fluid assemblies, and Clean-in-Place (CIP) systems where long-term sealing and durability are required. Its ability to support both fluid and gas transfer makes it a versatile choice across chemical processing, laboratory setups, and industrial gas distribution networks. Compact and reusable, it allows for easy disassembly and reinstallation without degrading sealing performance, making it a cost-effective solution for projects that demand both flexibility and reliability.
Key Benefits
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Provides a secure tube-to-female-thread connection through panels
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Compression side delivers leak-tight performance without sealants
-
316 stainless steel body resists corrosion, vibration, and media contamination
-
Locknut and body threads allow rigid mounting on panels or skid walls
-
Fully reusable and easy to reinstall in OEM service builds
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FNPT side fits standard 1/4″ NPT-threaded valves, regulators, or sensors
Typical Applications
- Original Equipment Manufacturer (OEM) process skids and test panels
- Clean-in-Place (CIP) instrumentation lines
- Skid-mounted or cabinet-mounted gas or liquid systems
- Sensor port extensions and panel-mounted valve interfaces
- Control panel penetrations and high-purity transfer systems
| Swagelok® | SS-400-71-4 |
|---|