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1056-64RC Strong Back RC 1000 Series Shielded Coupling
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1056 Series · Strong Back RC 1000 Series Shielded Coupling
Fernco Strong-Back 1056-64RC 6" X 4" Cast Iron, Plastic and Steel Pipe Shielded RC Coupling Connector Sewer and Drain Flexible Adapter
Part # 1056-64RC
- 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 and compliance. Proudly manufactured in the USA for over 60 years.
1056 Series Size: 6" x 4"
Connects Cast Iron, Plastic and Steel to Cast Iron, Plastic and Steel
Dimensions
| End 1 pipe OD range | 6.25" to 6.85" |
| End 2 pipe OD range | 4.40" to 4.55" |
| End 1 inside diameter | 6.65" |
| End 2 inside diameter | 4.50" |
| Length | 7.39 in |
| Width | 7.39 in |
| Height | 5.75 in |
| Weight | 5.34 lb |
Product details
Introducing the Fernco strong-back 1056-64RC 6" x 4" RC shielded couplings, the ultimate solution for demanding pipe connections. Specifically designed to effortlessly connect 6" to 4" cast iron, plastic, steel and copper pipes, this coupling accommodates pipe outer diameters ranging from 6.25"-6.85" on one end and 4.4"-4.55" 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 4" cast iron, plastic, and steel pipes. This coupling accommodates pipe outer diameters (ODs) ranging from 6.25"-6.85" on one end and 4.4"-4.55" 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 | Reducing 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 |
Compliance
AIS and BABA compliant
Meets American Iron and Steel and Build America, Buy America requirements for government and municipal projects.
Drawings and downloads
Documents
Dimensional drawing
1056-64RC, PDF · 86.74 KB
Compare 1056 Series sizes
Cast Iron, Plastic and Steel to Cast Iron, Plastic and Steel
-
- Size
- 1.5" x 1.5", Standard
- Pipe OD range
- 1.65" to 2.00"
- Standard version
- 1056-150
-
- Size
- 1.5" x 1.5", Xtra Long
- Standard version
- 1056-1502
-
- Size
- 2" x 2", Standard
- Pipe OD range
- 2.15" to 2.50"
- Standard version
- 1056-22
-
- Size
- 2" x 2", Xtra Long
- Pipe OD range
- 2.35" to 2.40"
- Standard version
- 1056-222
-
- Size
- 2" x 15"
- Pipe OD range
- 2.15" to 2.50" / 1.80" to 2.00"
- Standard version
- 1056-215
-
- Size
- 2.5" x 1.25"
- Pipe OD range
- 2.50" to 3.10" / 1.52" to 1.72"
- Standard version
- 1056-250/125
-
- Size
- 2.5" x 1.5"
- Pipe OD range
- 2.50" to 3.10" / 1.80" to 2.00"
- Standard version
- 1056-250/150
-
- Size
- 2.5" x 2"
- Pipe OD range
- 2.70" to 3.00" / 2.28" to 2.48"
- Standard version
- 1056-250/22
-
- Size
- 2.5" x 2.5"
- Pipe OD range
- 2.70" to 3.00"
- Standard version
- 1056-250
-
- Size
- 3" x 2"
- Pipe OD range
- 3.15" to 3.70" / 2.28" to 2.48"
- Standard version
- 1056-32
-
- Size
- 3" x 2.5"
- Pipe OD range
- 3.15" to 3.70" / 2.78" to 2.98"
- Standard version
- 1056-3/250
-
- Size
- 3" x 3", Standard
- Pipe OD range
- 3.15" to 3.70" / 3.10" to 3.70"
- Standard version
- 1056-33
-
- Size
- 3" x 3", Xtra Long
- Pipe OD range
- 3.40" to 3.60"
- Standard version
- 1056-332
-
- Size
- 4" x 2"
- Pipe OD range
- 4.10" to 4.60" / 2.28" to 2.48"
- Standard version
- 1056-42
-
- Size
- 4" x 3"
- Pipe OD range
- 4.25" to 4.65" / 3.40" to 3.60"
- Standard version
- 1056-43
-
- Size
- 4" x 4", 1056-44RC
- Pipe OD range
- 4.10" to 4.65"
- Standard version
- 1056-44
-
- Size
- 4" x 4", 1056-442RC
- Pipe OD range
- 4.15" to 4.35"
- Standard version
- 1056-442
-
- Size
- 4" x 4", 1056-443RC
- Pipe OD range
- 4.25" to 4.45"
- Standard version
- 1056-443
-
- Size
- 5" x 4"
- Pipe OD range
- 5.10" to 5.70" / 4.40" to 4.60"
- Standard version
- 1056-54
-
- Size
- 5" x 5", Standard
- Pipe OD range
- 5.10" to 5.70"
- Standard version
- 1056-55
-
- Size
- 5" x 5", Xtra Long
- Pipe OD range
- 5.50" to 5.50"
- Standard version
- 1056-552
-
1056-64RC (this part)
- Size
- 6" x 4"
- Pipe OD range
- 6.25" to 6.85" / 4.40" to 4.55"
- Standard version
- 1056-64
-
- Size
- 6" x 5"
- Pipe OD range
- 6.30" to 6.80" / 5.40" to 5.60"
- Standard version
- 1056-65
-
- Size
- 6" x 6", Standard
- Pipe OD range
- 6.30" to 6.80"
- Standard version
- 1056-66
-
- Size
- 6" x 6", Xtra Long
- Pipe OD range
- 6.30" to 6.80"
- Standard version
- 1056-662
-
- Size
- 8" x 4"
- Pipe OD range
- 8.00" to 8.75" / 4.40" to 4.60"
- Standard version
- 1056-84
-
- Size
- 8" x 6"
- Pipe OD range
- 8.00" to 8.75" / 6.53" to 6.73"
- Standard version
- 1056-86
-
- Size
- 8" x 8", Standard
- Pipe OD range
- 8.00" to 8.75"
- Standard version
- 1056-88
-
- Size
- 8" x 8", Xtra Long
- Pipe OD range
- 8.00" to 8.75"
- Standard version
- 1056-882
-
- Size
- 10" x 8"
- Pipe OD range
- 12.00" to 12.75" / 8.53" to 8.73"
- Standard version
- 1056-10-8
-
- Size
- 10" x 10", Standard
- Pipe OD range
- 10.10" to 10.80"
- Standard version
- 1056-1010
-
- Size
- 10" x 10", Xtra Long
- Pipe OD range
- 10.65" to 10.85"
- Standard version
- 1056-10102
-
- Size
- 12" x 10"
- Pipe OD range
- 12.00" to 12.75" / 10.65" to 10.85"
- Standard version
- 1056-1210
-
- Size
- 12" x 12", SDR-35
- Pipe OD range
- 12.00" to 12.75"
- Standard version
- 1056-1212
-
- Size
- 12" x 12", Xtra Long
- Pipe OD range
- 12.65" to 12.85"
- Standard version
- 1056-12122
-
- Size
- 14" x 14"
- Pipe OD range
- 13.00" to 14.50"
- Standard version
- 1056-1414
-
- Size
- 15" x 12"
- Pipe OD range
- 14.50" to 15.75" / 12.50" to 12.70"
- Standard version
- 1056-1512
-
- Size
- 15" x 15"
- Pipe OD range
- 14.50" to 15.75"
- Standard version
- 1056-1515
-
- Size
- 18" x 18"
- Pipe OD range
- 17.50" to 19.00"
- Standard version
- 1056-1818
-
- Size
- 21" x 21"
- Pipe OD range
- 20.50" to 22.50"
- Standard version
- 1056-2121
-
- Size
- 24" x 24"
- Pipe OD range
- 23.00" to 25.00"
- Standard version
- 1056-2424
-
- Size
- 27" x 27"
- Pipe OD range
- 26.20" to 28.20"
- Standard version
- 1056-2727
| Part | Size | Pipe OD range (end 1 / end 2) | Standard version |
|---|---|---|---|
| 1056-150RC | 1.5" x 1.5" Standard | 1.65" to 2.00" | 1056-150 |
| 1056-1502RC | 1.5" x 1.5" Xtra Long | 1056-1502 | |
| 1056-22RC | 2" x 2" Standard | 2.15" to 2.50" | 1056-22 |
| 1056-222RC | 2" x 2" Xtra Long | 2.35" to 2.40" | 1056-222 |
| 1056-215RC | 2" x 15" | 2.15" to 2.50" / 1.80" to 2.00" | 1056-215 |
| 1056-250/125RC | 2.5" x 1.25" | 2.50" to 3.10" / 1.52" to 1.72" | 1056-250/125 |
| 1056-250/150RC | 2.5" x 1.5" | 2.50" to 3.10" / 1.80" to 2.00" | 1056-250/150 |
| 1056-250/22RC | 2.5" x 2" | 2.70" to 3.00" / 2.28" to 2.48" | 1056-250/22 |
| 1056-250RC | 2.5" x 2.5" | 2.70" to 3.00" | 1056-250 |
| 1056-32RC | 3" x 2" | 3.15" to 3.70" / 2.28" to 2.48" | 1056-32 |
| 1056-3/250RC | 3" x 2.5" | 3.15" to 3.70" / 2.78" to 2.98" | 1056-3/250 |
| 1056-33RC | 3" x 3" Standard | 3.15" to 3.70" / 3.10" to 3.70" | 1056-33 |
| 1056-332RC | 3" x 3" Xtra Long | 3.40" to 3.60" | 1056-332 |
| 1056-42RC | 4" x 2" | 4.10" to 4.60" / 2.28" to 2.48" | 1056-42 |
| 1056-43RC | 4" x 3" | 4.25" to 4.65" / 3.40" to 3.60" | 1056-43 |
| 1056-44RC | 4" x 4" 1056-44RC | 4.10" to 4.65" | 1056-44 |
| 1056-442RC | 4" x 4" 1056-442RC | 4.15" to 4.35" | 1056-442 |
| 1056-443RC | 4" x 4" 1056-443RC | 4.25" to 4.45" | 1056-443 |
| 1056-54RC | 5" x 4" | 5.10" to 5.70" / 4.40" to 4.60" | 1056-54 |
| 1056-55RC | 5" x 5" Standard | 5.10" to 5.70" | 1056-55 |
| 1056-552RC | 5" x 5" Xtra Long | 5.50" to 5.50" | 1056-552 |
| 1056-64RC (this part) | 6" x 4" | 6.25" to 6.85" / 4.40" to 4.55" | 1056-64 |
| 1056-65RC | 6" x 5" | 6.30" to 6.80" / 5.40" to 5.60" | 1056-65 |
| 1056-66RC | 6" x 6" Standard | 6.30" to 6.80" | 1056-66 |
| 1056-662RC | 6" x 6" Xtra Long | 6.30" to 6.80" | 1056-662 |
| 1056-84RC | 8" x 4" | 8.00" to 8.75" / 4.40" to 4.60" | 1056-84 |
| 1056-86RC | 8" x 6" | 8.00" to 8.75" / 6.53" to 6.73" | 1056-86 |
| 1056-88RC | 8" x 8" Standard | 8.00" to 8.75" | 1056-88 |
| 1056-882RC | 8" x 8" Xtra Long | 8.00" to 8.75" | 1056-882 |
| 1056-10-8RC | 10" x 8" | 12.00" to 12.75" / 8.53" to 8.73" | 1056-10-8 |
| 1056-1010RC | 10" x 10" Standard | 10.10" to 10.80" | 1056-1010 |
| 1056-10102RC | 10" x 10" Xtra Long | 10.65" to 10.85" | 1056-10102 |
| 1056-1210RC | 12" x 10" | 12.00" to 12.75" / 10.65" to 10.85" | 1056-1210 |
| 1056-1212RC | 12" x 12" SDR-35 | 12.00" to 12.75" | 1056-1212 |
| 1056-12122RC | 12" x 12" Xtra Long | 12.65" to 12.85" | 1056-12122 |
| 1056-1414RC | 14" x 14" | 13.00" to 14.50" | 1056-1414 |
| 1056-1512RC | 15" x 12" | 14.50" to 15.75" / 12.50" to 12.70" | 1056-1512 |
| 1056-1515RC | 15" x 15" | 14.50" to 15.75" | 1056-1515 |
| 1056-1818RC | 18" x 18" | 17.50" to 19.00" | 1056-1818 |
| 1056-2121RC | 21" x 21" | 20.50" to 22.50" | 1056-2121 |
| 1056-2424RC | 24" x 24" | 23.00" to 25.00" | 1056-2424 |
| 1056-2727RC | 27" x 27" | 26.20" to 28.20" | 1056-2727 |
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 1056-64RC 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 1056-64RC?
Send us a message and the right team will reply, usually within one business day. Or call us, Monday to Friday, 8:00 am to 5:00 pm ET.