Locknuts, Nipples, Washers, Reducers and Plugs – Rigid-IMC

Key Features of Crouse-Hinds Rigid Fittings

• Durable Materials: Available in steel, malleable iron, zinc die-cast, and stainless steel constructions.
• High-Temperature Resistance: Suitable for demanding environments.
• UL Listed: All products are UL listed, ensuring compliance with safety standards.
• Versatility: Compatible with both rigid and IMC conduit.
• Corrosion Resistance: Stainless steel fittings offer superior resistance to corrosion and heat.

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Product Categories

Crouse-Hinds rigid fittings are categorized based on their construction and application:

1. Bushing Pennies & Nailing Straps

• Applications: Used to seal the end of conduit during construction and support rigid conduit and IMC to mounting surfaces.
• Key Features:
  • Bushing Pennies: Seal the end of conduit.
  • Nailing Straps: Support conduit to mounting surfaces.
• Standard Finish: Zinc plated.

2. Conduit U-Bolts & Sealing Locknuts

• Applications: Used to secure conduit and provide raintight, watertight, or oiltight seals.
• Key Features:
  • Heavy Duty Conduit U-Bolts: Electrogalvanized iron with hex nuts.
  • Sealing Locknuts: Integrally fused PVC gasket for positive seal.
• Standard Finish: Zinc plated.

3. Conduit Locknuts

• Applications: Used to secure conduit fittings.
• Key Features:
  • Steel, Malleable Iron, and Zinc Die Cast: Available in various materials.
  • Thin Construction Locknuts: Steel locknuts for thin applications.
  • Bonding Locknuts: For bonding conduit to boxes or enclosures.
• Standard Finish: Zinc plated.

4. Galvanized Rigid Conduit Nipples

• Applications: Used to join two enclosures or conduit bodies together.
• Key Features:
  • NPT Threads: Designed for use with threaded rigid conduit.
  • Galvanized Finish: Resists corrosion.
• Standard Finish: Galvanized.

5. Rigid Conduit Nipples – Aluminum

• Applications: Used to join two enclosures or conduit bodies together.
• Key Features:
  • NPT Threads: Suitable for both indoor and outdoor applications.
  • Aluminum Construction: Lightweight and corrosion-resistant.
• Standard Finish: Natural aluminum.

6. Conduit Bushed (Chase) Nipples & Offset Conduit Nipples

• Applications: Used to connect two boxes side by side or back to back.
• Key Features:
  • Malleable Iron & Zinc Die Cast: Available in non-insulated and insulated versions.
  • Offset Nipples: Used to offset the axis of raceways.
• Standard Finish: Zinc plated.

7. Push Plugs – Plastic

• Applications: Used to plug knockouts on enclosures to prevent moisture, dust, and debris from entering.
• Key Features:
  • Temperature Rating: 180°F to 200°F.
  • Tensile Strength: 600-2300 PSI.
• Standard Finish: Plastic.

8. Knockout Snap-In Blanks & Reducing Washers

• Applications: Used to plug knockouts in steel boxes and reduce knockout sizes.
• Key Features:
  • Snap-In Blanks: Press firmly into knockout for a secure connection.
  • Reducing Washers: Reduce knockout size in steel boxes.
• Standard Finish: Zinc plated.

9. Concrete Slab Inserts – 90 Degree

• Applications: Used with rigid and IMC conduit in poured concrete slabs.
• Key Features:
  • 90 Degree Design: Eliminates the need to bend conduit.
  • Zinc Die Cast: Resists corrosion.
• Standard Finish: Zinc plated.

10. Conduit Reducers & Plugs

• Applications: Used to reduce the threaded opening on conduit bodies or plug unused threaded conduit openings.
• Key Features:
  • Steel/Iron Reducers: Smooth pulling surface.
  • Cast Iron Plugs: Available in flush (recessed) or square head types.
• Standard Finish: Zinc plated.

11. Stainless Steel Fittings

• Applications: Ideal for corrosive environments such as food processing, pharmaceutical, and petrochemical industries.
• Key Features:
  • 316 Stainless Steel: Superior corrosion resistance.
  • Self-Healing Properties: Reduces rust and corrosion penetration.
• Standard Finish: Natural stainless steel.

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Product Specifications

Below is a detailed breakdown of the rigid fittings, including catalog numbers, sizes, unit quantities, and weights:

Bushing Pennies – Steel

Catalog No.	Size	Unit Qty.	Weight (lbs. per 100)
90	1/2”	100	1
91	3/4”	100	1
92	1”	100	1

Nailing Straps – Cast Steel

Catalog No.	Size	Unit Qty.	Weight (lbs. per 100)
NS 1	1/2”	100	2
NS 2	3/4”	100	2
NS 3	1”	100	3

Sealing Locknuts

Catalog No.	Size	Unit Qty.	Weight (lbs. per 100)
SL1	1/2”	100	1
SL2	3/4”	50	2
SL3	1”	25	4

Galvanized Rigid Conduit Nipples – Steel

Catalog No.	Size & Length	Unit Qty.	Weight (lbs. per 100)
NPL50CL	1/2” x CLOSE	25	5
NPL50150	1/2” x 1 1/2”	25	8
NPL50200	1/2” x 2”	25	10

Rigid Conduit Nipples – Aluminum

Catalog No.	Size & Length	Unit Qty.	Weight (lbs. per 100)
NPL50CLSA	1/2” x CLOSE	25	2
NPL50150SA	1/2” x 1 1/2”	25	3
NPL50200SA	1/2” x 2”	25	4

Conduit Bushed (Chase) Nipples – Malleable Iron & Zinc Die Cast

Catalog No.	Size	Unit Qty.	Weight (lbs. per 100)
50	1/2”	50	3
51	3/4”	25	8
52	1”	10	13

Push Plugs – Plastic

Catalog No.	Size	Unit Qty.	Weight (lbs. per 100)
PPC 50	1/2”	100	1
PPC 75	3/4”	100	1
PPC 100	1”	50	1

Knockout Snap-In Blanks – Steel

Catalog No.	Size	Unit Qty.	Weight (lbs. per 100)
342	3/4” – 1/2”	100	1
343	1” – 1/2”	100	2
344	1” – 3/4”	100	2

Concrete Slab Inserts – 90 Degree

Catalog No.	Size	Unit Qty.	Weight (lbs. per 100)
ESL75	3/4”	5	41
ESL100	1”	5	57

Conduit Reducers – Steel/Iron

Catalog No.	Size	Unit Qty.	Weight (lbs. per 100)
251	1/2” – 1/4”	50	4
252	3/4” – 1/2”	25	13
253	1” – 3/4”	10	30

Plugs – Cast Iron

Catalog No.	Size	Unit Qty.	Weight (lbs. per 100)
PLG1M	1/2”	50	6
PLG2M	3/4”	50	11
PLG3M	1”	25	22

Stainless Steel Fittings

Catalog No.	Size	Unit Qty.	Weight (lbs. per 100)
115S	1/2”	1000	2
125S	3/4”	500	3
135S	1”	500	5

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Applications

• Threaded Conduit: Ideal for use on threaded rigid/IMC conduit.
• Threadless Conduit: Suitable for threadless rigid/IMC conduit.
• Corrosive Environments: Stainless steel fittings are ideal for food processing, pharmaceutical, and petrochemical industries.

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Why Choose Crouse-Hinds Rigid Fittings?

• High-Quality Materials: Durable steel, malleable iron, zinc die-cast, and stainless steel constructions.
• Versatility: Compatible with both rigid and IMC conduit.
• Safety Compliance: UL listed for safety and reliability.
• Wide Range of Sizes: Available in sizes from 1/2” to 6”, catering to various electrical systems.

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Conclusion

Crouse-Hinds rigid fittings are a reliable choice for ensuring safe and effective electrical installations. With a variety of sizes, materials, and configurations, these products are designed to meet the needs of both threaded and threadless rigid/IMC conduit applications.