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Thomas & Betts 143SL - Sealing Locknut 1" Steel

Thomas & Betts
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Thomas & Betts 143SL is a 1-inch steel sealing locknut engineered to provide a watertight or raintight seal at conduit enclosures, protecting against water and oil ingress. It is designed for use with rigid, IMC, and EMT conduit systems and features a threaded installation for secure attachment. The locknut is constructed from chromate-coated hardened steel, offering durability and corrosion resistance, with an approximate diameter of 1.77 inches and a weight of 10 lb. It is approved under UL 514B and CSA C22.2 standards, ensuring compliance with industry safety requirements. This component is suitable for both indoor and outdoor industrial applications where a positive seal is critical.

Key Features & Specifications
  • Size: 1 inch trade size
  • Material: Steel, chromate coated
  • Sealing type: Watertight/raintight
  • Installation: Threaded
  • Compatible with rigid, IMC, and EMT conduit
  • Approvals: UL 514B, CSA C22.2
  • Durable hardened steel construction
  • Provides positive seal against water and oil
  • Indoor and outdoor use
  • Diameter: Approximately 1.77 inches
  • Weight: 10 lb


Product Identification
  • UPC: 78621081625
  • GTIN: 00786210816258