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5056-66RC Strong Back RC 5000 Series Shielded Coupling
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5056 Series · Strong Back RC 5000 Series Shielded Coupling
Fernco Strong-Back 5056-66RC 6" X 6" Cast Iron, Plastic or Steel Pipe Shielded RC Coupling Connector Sewer and Drain Flexible Adapter
Part # 5056-66RC
- Below-ground pipe connector excellence. Designed to resist heavy earth loads and shear forces, Fernco strong-back RC pipe couplings stand as the optimal...
- The preferred pipe connector. Fernco couplings stand as the top choice for flexible pipe connections in waste, drain, and vent applications.
- Unsurpassed durability. Provides a permanent, leak-proof solution for sewer, drain, waste, and vent piping needs, ensuring enduring...
- American craftsmanship. With over 60 years of proud manufacturing in the USA, Fernco's products reflect unparalleled quality and...
Dimensions
| End 1 pipe OD range | 6.18" to 6.65" |
| End 2 pipe OD range | 6.18" to 6.65" |
| End 1 inside diameter | 6.65" |
| Length | 7.38 in |
| Width | 7.38 in |
| Height | 5.75 in |
| Weight | 2.88 lb |
Product details
Introducing the Fernco strong-back 5056-66RC 6" x 6" strong-back RC shielded couplings with nut and bolt clamps, the ultimate solution for demanding pipe connections. Specifically designed to effortlessly connect 6" ductile iron to 6" ductile iron pipes, this coupling accommodates pipe outer diameters ranging from 6.18"-6.65" on one end and 6.18"-6.65" on the other end, guaranteeing a flexible fit for various applications. Built to withstand challenging conditions, including slight off-set in host pipes, these shielded couplings offer unparalleled adaptability and resilience. Engineered for below-ground excellence, Fernco strong-back RC pipe couplings resist heavy earth loads and shear forces, ensuring secure connections that last.
Trusted by professionals worldwide, Fernco is the preferred choice for waste, drain, and vent applications. Plumbers, contractors, and municipalities rely on Fernco couplings for their unmatched performance and peace of mind. Fernco couplings deliver a permanent, leak-proof solution for sewer, drain, waste, and vent piping needs, meeting stringent requirements and standards with ease. Backed by industry-leading specs and codes compliance, including ASTM d 5926, c 1173 CSA B602, and UPC approval, Fernco couplings ensure reliability above and below ground. With a maximum test pressure of 4.3 PSI, these couplings are designed for waste, drain and vent applications. Crafted with pride in the USA for over 60 years, Fernco's legacy of american craftsmanship shines through in every product.
Unrivaled resilience in challenging conditions. Fernco strong-back RC shielded couplings accommodate challenging pipe connections, including slight off-set in host pipes.
Flexible fit. Specifically designed to connect 6" to 6" cast iron, plastic or steel pipes. This coupling accommodates pipe outer diameters (ODs) ranging from 6.18"-6.65" on one end and 6.18"-6.65" on the other end.
Specs and codes. Complies with ASTM d 5926, c 1173, CSA b602 and are UPC approved. Best for below ground use. Maximum test pressure: 4.3 PSI.
Specifications
| Connection | Mechanical |
| Fitting type | Straight Coupling |
| Flexible | Yes |
| Material | Elastomeric PVC, Stainless Steel |
| Color | Black, Silver |
| Standards | ASTM C1173, ASTM D5926, CSA B602, UPC |
| Application | Below Ground, DWV |
| Max test pressure | 4.3 psi |
| Temperature range | -30°F to 140°F |
Drawings and downloads
Documents
Dimensional drawing
5056-66RC, PDF · 105.91 KB
Compare 5056 Series sizes
Cast Iron, Plastic and Steel to Cast Iron, Plastic and Steel
-
- Size
- 3" x 3"
- Pipe OD range
- 3.26" to 3.50"
-
- Size
- 4" x 3"
- Pipe OD range
- 4.26" to 4.50" / 3.40" to 3.60"
-
- Size
- 4" x 4"
- Pipe OD range
- 4.26" to 4.50"
-
- Size
- 5" x 4"
- Pipe OD range
- 5.03" to 5.50" / 4.40" to 4.60"
-
- Size
- 6" x 4"
- Pipe OD range
- 6.18" to 6.65" / 4.03" to 4.50"
-
- Size
- 6" x 5"
- Pipe OD range
- 6.18" to 6.65" / 5.52" to 5.72"
-
5056-66RC (this part)
- Size
- 6" x 6"
- Pipe OD range
- 6.18" to 6.65"
-
- Size
- 8" x 6"
- Pipe OD range
- 8.18" to 8.65" / 6.53" to 6.73"
-
- Size
- 8" x 8"
- Pipe OD range
- 8.18" to 8.65"
-
- Size
- 10" x 8"
- Pipe OD range
- 10.18" to 10.65" / 8.53" to 8.73"
-
- Size
- 10" x 10"
- Pipe OD range
- 10.18" to 10.65"
-
- Size
- 12" x 10"
- Pipe OD range
- 12.08" to 12.55" / 10.65" to 10.85"
-
- Size
- 12" x 12"
- Pipe OD range
- 12.08" to 12.55"
-
- Size
- 15" x 15"
- Pipe OD range
- 14.93" to 15.40"
-
- Size
- 18" x 18"
- Pipe OD range
- 18.03" to 18.50"
-
- Size
- 24" x 24"
- Pipe OD range
- 24.03" to 24.50"
| Part | Size | Pipe OD range (end 1 / end 2) |
|---|---|---|
| 5056-33RC | 3" x 3" | 3.26" to 3.50" |
| 5056-43RC | 4" x 3" | 4.26" to 4.50" / 3.40" to 3.60" |
| 5056-44RC | 4" x 4" | 4.26" to 4.50" |
| 5056-54RC | 5" x 4" | 5.03" to 5.50" / 4.40" to 4.60" |
| 5056-64RC | 6" x 4" | 6.18" to 6.65" / 4.03" to 4.50" |
| 5056-65RC | 6" x 5" | 6.18" to 6.65" / 5.52" to 5.72" |
| 5056-66RC (this part) | 6" x 6" | 6.18" to 6.65" |
| 5056-86RC | 8" x 6" | 8.18" to 8.65" / 6.53" to 6.73" |
| 5056-88RC | 8" x 8" | 8.18" to 8.65" |
| 5056-10-8RC | 10" x 8" | 10.18" to 10.65" / 8.53" to 8.73" |
| 5056-1010RC | 10" x 10" | 10.18" to 10.65" |
| 5056-1210RC | 12" x 10" | 12.08" to 12.55" / 10.65" to 10.85" |
| 5056-1212RC | 12" x 12" | 12.08" to 12.55" |
| 5056-1515RC | 15" x 15" | 14.93" to 15.40" |
| 5056-1818RC | 18" x 18" | 18.03" to 18.50" |
| 5056-2424RC | 24" x 24" | 24.03" to 24.50" |
Also for below ground
HULK universal coupling
One coupling per size for clay, cast iron, plastic, steel, ductile iron and concrete. Stainless steel rods are built into the body for high shear strength.
See HULK
Made in the USA
Made for pros by pros
The 5056-66RC is made in the USA. Fernco has built flexible couplings in Davison, Michigan since 1964, by people who take the work as seriously as you do.
Meet the team
Got questions about the 5056-66RC?
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