DELPHI FITTINGS
Product Overview
Delphi Fittings Part 5000 is a precision-machined SAE 130138 female pipe coupling engineered to rigidly join two male NPT or NPTF threaded pipe ends of equal nominal size. Manufactured from heavy hexagonal cold-drawn carbon steel bar stock, it features internal NPTF Dryseal tapered pipe threads at both ends to deliver a leak-tight metal-to-metal seal under industrial hydraulic pressures. Its generous hex wrench flats permit confident high-torque makeup without component deformation.
Key Features & Specifications
| Material | High-Grade Carbon Steel (Standard 1215/1045; Stainless 316 on request) |
|---|---|
| Industry Standards | SAE 130138 / ANSI B1.20.3 (NPTF Dryseal) |
| Thread Configuration | Female NPTF × Female NPTF Dryseal |
| Body Style | Full Hexagonal Body for Open-End / Socket Wrenching |
| Sealing Mechanism | Metal-to-Metal Thread Interference Seal (3/4" taper per foot) |
| Corrosion Protection | Standard Cr3+ Clear Trivalent Zinc Plating |
| Primary Function | Rigid inline coupling of two male pipe-threaded components |
| Temperature Range | -65°F to +400°F (-54°C to +204°C) depending on media |
Commonly Available Sizes (Part #5000 Series)
Delphi Fittings manufactures standard and custom sizes for Part 5000. Nominal thread specifications, wrench hex sizes, and center-to-end reference dimensions for common production sizes are listed below:
| Part Number | Port 1 Thread | Port 2 Thread | Hex Flat (F) | Overall Length (Ref) |
|---|---|---|---|---|
| 5000-02-02 | 1/8"-27 NPTF Female | 1/8"-27 NPTF Female | 1/2" (12.7 mm) | 0.75" (19.1 mm) |
| 5000-04-04 | 1/4"-18 NPTF Female | 1/4"-18 NPTF Female | 11/16" (17.5 mm) | 1.12" (28.4 mm) |
| 5000-06-06 | 3/8"-18 NPTF Female | 3/8"-18 NPTF Female | 13/16" (20.6 mm) | 1.12" (28.4 mm) |
| 5000-08-08 | 1/2"-14 NPTF Female | 1/2"-14 NPTF Female | 1" (25.4 mm) | 1.50" (38.1 mm) |
| 5000-12-12 | 3/4"-14 NPTF Female | 3/4"-14 NPTF Female | 1-1/4" (31.8 mm) | 1.53" (38.9 mm) |
| 5000-16-16 | 1"-11-1/2 NPTF Female | 1"-11-1/2 NPTF Female | 1-5/8" (41.3 mm) | 1.89" (48.0 mm) |
| 5000-20-20 | 1-1/4"-11-1/2 NPTF Female | 1-1/4"-11-1/2 NPTF Female | 2" (50.8 mm) | 1.93" (49.0 mm) |
| 5000-24-24 | 1-1/2"-11-1/2 NPTF Female | 1-1/2"-11-1/2 NPTF Female | 2-3/8" (60.3 mm) | 1.97" (50.0 mm) |
| 5000-32-32 | 2"-11-1/2 NPTF Female | 2"-11-1/2 NPTF Female | 2-7/8" (73.0 mm) | 2.08" (52.8 mm) |
Need non-standard dash jumps, metric or BSP transition threads, special drop lengths, or alternative alloy grades (AISI 316 / Brass)? Delphi engineers custom threaded adapters to client blueprint.
Specific Applications & Flow Routing
Part 5000 fittings serve critical fluid-routing roles where robust, leak-free performance is essential:
- Rigid Piping Runs: Joining straight male-threaded pipe sections across plant fluid-distribution lines.
- Hydraulic Valve Spools: Bridging male threaded cartridge ports to flexible hose adapters or instrumentation.
- Sensor Wells & Manifolds: Extending male sensor probes and pressure gauges away from high-temperature block walls.
- Pneumatic Header Lines: Coupling male air-service drops to inline filter-regulator-lubricator (FRL) assemblies.
Installation & Assembly Guidance
- Thread Cleanliness: Ensure male mating threads and internal coupling threads are free of particulate matter and burrs.
- Engagement Check: Thread male fitting into coupling hand-tight (approximately 2 to 3 full turns) to verify alignment.
- Wrench Tightening: Apply wrench to coupling hex and tighten 2 to 3 turns past finger-tight (T.P.F.T.) per standard SAE guidelines.
- Backup Wrenching: Always use a secondary wrench on the mating pipe to avoid transferring tightening torque downstream.
Why Source Part 5000 from Delphi Fittings?
- Controlled Thread Taper: Every internal thread is CNC tapped or single-point chased to exact L1 and L3 ring gage specifications.
- Heavy-Hex Stock: Turned from premium hexagonal bar stock, providing oversized wrench engagement surfaces that resist rounding.
- Corrosion Resistance: Standard trivalent zinc plating exceeds ASTM B117 salt spray benchmarks without hexavalent chromium.
- OEM Program Support: Direct factory production with batch heat-treatment traceability, PPAP Level 3 documentation, and custom packaging.
Get a Quote for Part 5000 - NPTF Pipe Female Coupling
Distributor pricing, full material certifications, and sample lots available on request. Contact our engineering and sales team for volume quotation and production lead times.
Complementary & Mating Hydraulic Fittings
Commonly paired with Part 5000 in hydraulic manifold blocks, fluid power units, and rigid industrial piping assemblies:
