5000 Series Strong Back RC
Heavy-duty performance for demanding underground connections.Designed to resist heavy earth loads and shear forces while helping maintain pipe alignment across larger-diameter underground repairs and material transitions.
Built for Larger, More Demanding Connections
Fernco 5000 Series RC Couplings combine a flexible elastomeric sleeve, molded-in bushing, stainless steel shield, and corrosion-resistant clamp system to create strong underground transitions between common sewer pipe materials.
- Resistance to Earth Loads and Shear Forces: The stainless steel shield helps reinforce the connection and improve pipe alignment in demanding underground installations.
- Corrosion-Resistant Components: 316 stainless steel clamp bands provide added durability in harsh underground environments.
- Molded-In Bushing: The coupling is manufactured around the required pipe transition, creating a purpose-built connection between different outside diameters.
- Multiple Pipe Materials: Available for transitions involving clay, concrete, cast iron, ductile iron, plastic, steel, and lead.
Strength Added Where the Connection Needs It
Each component of the 5000 Series is designed to support secure underground installation, dependable sealing, and improved resistance to external loads.
Stainless Steel Shield
A .012" thick, 300 series stainless steel shear ring reinforces the coupling and helps distribute shear forces across the connection.
316 Stainless Steel Bands
Corrosion-resistant clamp bands provide dependable clamping performance in demanding underground environments.
Molded-In Pipe Transition
The molded-in bushing creates a transition between differing pipe outside diameters without relying on a loose, separately positioned reducer.
Dual Nut-and-Bolt Take-Up Points
For 6" and larger couplings, each clamp band incorporates two nut-and-bolt take-up points to support secure installation and consistent clamping around larger pipe diameters.
- Two Take-Up Points Per Band: Helps distribute clamping force around the circumference of the larger coupling.
- Secure Installation: The nut-and-bolt design provides controlled tightening at the specified installation torque.
- 60 In.-Lbs. Installation Torque: Supports repeatable installation across the coupling clamp system.
Designed for Pipe Material Transitions
The 5000 Series provides shielded underground connections across a range of common sewer pipe materials and outside diameters.
- Clay to clay
- Clay to cast iron, plastic, or SDR plastic
- Clay to ductile iron
- Concrete to concrete
- Concrete to cast iron or plastic
- Ductile iron to cast iron or plastic
- Ductile iron to ductile iron
- Cast iron, plastic, steel, or lead to cast iron, plastic, steel, or lead
Important: The 5000 Series is not promoted as AIS or BABA compliant. Select the coupling based on pipe materials, outside diameters, and project performance requirements.
5000 Series RC Couplings
Coupling
- Standards: Manufactured to conform to ASTM C1173 and CSA B602 performance requirements.
- Installation Torque: 60 in.-lbs.
- Maximum Test Pressure: 4.3 PSI (29.6 kPa).
- Maximum Operating Temperature: 140°F, non-continuous.
Gasket
- Material Requirements: CSA B602, ASTM D5926, and ASTM C1173.
- Hardness: Shore A 65 ±5.
- Tensile Strength: 1,000 PSI minimum.
- Elongation at Rupture: 250% minimum.
- Tear Strength: 150 lb./in.
- Brittleness Temperature: -40°F.
Clamp and Shield
- Clamp Bands: 316 stainless steel.
- Large-Diameter Design: Two nut-and-bolt take-up points per band on 6" and larger couplings.
- Shear Ring: .012" thick, 300 series stainless steel.
- Shield Width: Manufactured according to the coupling width.
5000 Series RC Part Numbers
Search by part number, pipe material, or dimension. Open a product family to review its available configurations.
| Part No. | Side A (in.) | Side A (mm) | Side B (in.) | Side B (mm) | Width C (in.) | Width C (mm) |
|---|---|---|---|---|---|---|
| 5001-44RC | 5.29 | 134.37 | 5.29 | 134.37 | 4.10 | 104.14 |
| 5001-44WCRC | 5.51 | 139.95 | 5.51 | 139.95 | 3.97 | 100.84 |
| 5001-66RC | 7.50 | 190.50 | 7.50 | 190.50 | 6.02 | 152.91 |
| 5001-66WCRC | 8.01 | 203.45 | 8.01 | 203.45 | 6.00 | 152.40 |
| 5001-88RC | 9.65 | 245.11 | 9.65 | 245.11 | 5.99 | 152.15 |
| 5001-88WCRC | 10.00 | 254.00 | 10.00 | 254.00 | 6.00 | 152.40 |
| 5001-1010RC | 12.40 | 314.96 | 12.40 | 314.96 | 5.90 | 149.86 |
| 5001-1010WCRC | 12.40 | 314.96 | 12.40 | 314.96 | 5.90 | 149.86 |
Maximum test pressure: 4.3 PSI (29.6 kPa). Maximum operating temperature: 140°F non-continuous.
| Part No. | Side A (in.) | Side A (mm) | Side B (in.) | Side B (mm) | Width C (in.) | Width C (mm) |
|---|---|---|---|---|---|---|
| 5002-44RC | 5.36 | 136.14 | 4.51 | 114.55 | 4.07 | 103.38 |
| 5002-44WCRC | 5.44 | 138.18 | 4.55 | 115.57 | 3.96 | 100.58 |
| 5002-44WCSDRRC | 5.55 | 141.00 | 4.38 | 111.25 | 4.48 | 113.79 |
| 5002-64RC* | 7.50 | 190.50 | 4.50 | 114.30 | 6.02 | 152.91 |
| 5002-64WCRC* | 8.00 | 203.20 | 4.50 | 114.30 | 6.00 | 152.40 |
| 5002-64WCSDRRC | 8.00 | 203.20 | 4.38 | 111.25 | 6.25 | 158.75 |
| 5002-66RC | 7.50 | 190.50 | 6.56 | 166.65 | 5.89 | 149.68 |
| 5002-66WCRC | 8.04 | 204.10 | 6.38 | 162.14 | 5.91 | 150.01 |
| 5002-66WCSDRRC | 8.00 | 203.20 | 6.45 | 163.83 | 6.00 | 152.40 |
| 5002-88RC | 9.76 | 247.95 | 8.57 | 217.63 | 5.96 | 151.38 |
| 5002-88WCRC | 10.00 | 254.00 | 8.66 | 219.96 | 6.00 | 152.40 |
| 5002-88WCSDRRC | 10.00 | 254.00 | 8.38 | 212.85 | 6.00 | 152.40 |
| 5002-1010RC* | 12.40 | 314.96 | 10.75 | 273.05 | 5.90 | 149.86 |
| 5002-1010WCSDRRC | 12.40 | 314.96 | 10.60 | 269.24 | 6.25 | 158.75 |
* Supplied with reducer.
Maximum test pressure: 4.3 PSI (29.6 kPa). Maximum operating
temperature: 140°F non-continuous.
| Part No. | Side A (in.) | Side A (mm) | Side B (in.) | Side B (mm) | Width C (in.) | Width C (mm) |
|---|---|---|---|---|---|---|
| 5003-44RC | 5.41 | 137.41 | 4.94 | 125.48 | 4.07 | 103.38 |
| 5003-66RC | 7.25 | 184.15 | 6.84 | 173.74 | 5.93 | 150.62 |
Maximum test pressure: 4.3 PSI (29.6 kPa). Maximum operating temperature: 140°F non-continuous.
| Part No. | Side A (in.) | Side A (mm) | Side B (in.) | Side B (mm) | Width C (in.) | Width C (mm) |
|---|---|---|---|---|---|---|
| 5004-44RC | 5.51 | 139.95 | 5.51 | 139.95 | 3.97 | 100.84 |
| 5004-66RC | 7.58 | 192.53 | 7.58 | 192.53 | 5.94 | 150.88 |
| 5004-88RC | 10.38 | 263.65 | 10.38 | 263.65 | 5.90 | 149.86 |
| 5004-1010RC | 12.40 | 314.96 | 12.40 | 314.96 | 5.90 | 149.86 |
| 5004-1212RC | 15.25 | 387.35 | 15.25 | 387.35 | 6.42 | 163.07 |
Maximum test pressure: 4.3 PSI (29.6 kPa). Maximum operating temperature: 140°F non-continuous.
| Part No. | Side A (in.) | Side A (mm) | Side B (in.) | Side B (mm) | Width C (in.) | Width C (mm) |
|---|---|---|---|---|---|---|
| 5006-44RC* | 5.51 | 139.95 | 4.50 | 114.30 | 3.97 | 100.84 |
| 5006-66RC* | 7.58 | 192.53 | 6.63 | 168.28 | 5.94 | 150.88 |
| 5006-88RC* | 10.38 | 263.65 | 8.50 | 215.90 | 5.90 | 149.86 |
| 5006-1010RC* | 12.40 | 314.96 | 10.75 | 273.05 | 5.90 | 149.86 |
| 5006-1212RC* | 15.25 | 387.35 | 12.60 | 320.04 | 6.42 | 163.07 |
* Supplied with reducer.
Maximum test pressure: 4.3 PSI (29.6 kPa). Maximum operating
temperature: 140°F non-continuous.
| Part No. | Side A (in.) | Side A (mm) | Side B (in.) | Side B (mm) | Width C (in.) | Width C (mm) |
|---|---|---|---|---|---|---|
| 5051-44RC | 4.80 | 121.92 | 4.39 | 111.51 | 3.94 | 100.08 |
| 5051-46RC* | 6.60 | 167.64 | 4.75 | 120.65 | 5.74 | 145.80 |
| 5051-64RC* | 6.95 | 176.53 | 4.38 | 111.25 | 5.92 | 150.37 |
| 5051-66RC | 6.96 | 176.78 | 6.69 | 169.80 | 5.91 | 150.11 |
| 5051-88RC | 9.25 | 234.95 | 8.51 | 216.15 | 5.97 | 151.64 |
| 5051-1010RC | 11.02 | 279.78 | 10.52 | 267.13 | 5.85 | 148.46 |
* Supplied with reducer.
Maximum test pressure: 4.3 PSI (29.6 kPa). Maximum operating
temperature: 140°F non-continuous.
| Part No. | Side A (in.) | Side A (mm) | Side B (in.) | Side B (mm) | Width C (in.) | Width C (mm) |
|---|---|---|---|---|---|---|
| 5055-44RC | 4.75 | 120.65 | 4.75 | 120.65 | 3.96 | 100.58 |
| 5055-66RC | 6.65 | 168.91 | 6.65 | 168.91 | 5.92 | 150.37 |
| 5055-88RC | 9.05 | 229.87 | 9.05 | 229.87 | 5.98 | 151.89 |
Maximum test pressure: 4.3 PSI (29.6 kPa). Maximum operating temperature: 140°F non-continuous.
| Part No. | Side A (in.) | Side A (mm) | Side B (in.) | Side B (mm) | Width C (in.) | Width C (mm) |
|---|---|---|---|---|---|---|
| 5056-43RC* | 4.58 | 116.33 | 3.38 | 85.85 | 4.02 | 102.11 |
| 5056-44RC | 4.58 | 116.33 | 4.58 | 116.33 | 4.02 | 102.11 |
| 5056-64RC* | 6.60 | 167.64 | 4.50 | 114.30 | 5.74 | 145.80 |
| 5056-66RC | 6.60 | 167.64 | 6.60 | 167.64 | 5.74 | 145.80 |
| 5056-88RC | 8.64 | 219.46 | 8.64 | 219.46 | 6.04 | 153.42 |
| 5056-1010RC | 10.63 | 270.00 | 10.63 | 270.00 | 6.04 | 153.42 |
* Supplied with reducer.
Maximum test pressure: 4.3 PSI (29.6 kPa). Maximum operating
temperature: 140°F non-continuous.
Tell Us About the Connection
Submit the pipe materials, outside diameters, and application details. The Fernco team will help identify the appropriate Strong Back RC coupling for the project.
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