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Aluminium reducing bushing 1 in x 1-1/2 in threaded plain finish

Killark

Killark R-53 IMC Reducing Bushing 1 in x 1-1/2 in Threaded Aluminum conduit

SKU CH-K93X-SSQ1P

Threaded aluminum reducing bushing connects 1 in and 1-1/2 in IMC conduit in hazardous locations

  • TypeCable Management & Conduit
  • Reduces conduit size from 1-1/2 in to 1 in for flexible routing
  • Threaded female-to-male ends enable secure IMC and RMC connections
  • Aluminium construction resists corrosion in harsh industrial environments
  • Rated for Class I Division 1 and 2 hazardous locations
  • Compact 7/8 in length fits tight enclosure spaces

1 in x 1-1/2 in Reducing Bushing

The Killark R-53 reducing bushing connects 1 in female threaded conduit to 1-1/2 in male threaded conduit. It is manufactured from plain aluminium and rated for hazardous locations including Class I Division 1 and 2, Groups A through D. The fitting suits IMC and threaded RMC conduit types. Overall length measures 7/8 in with a width of 1 29/32 in.

Installers needing hazardous-location step-down

Electricians reducing conduit trade size in Class I Zone 1 or 2 areas will find the required certifications present. The bushing also meets Class II Division 1 and 2, Groups E, F and G requirements. Buyers who need a different trade-size combination or a non-hazardous fitting should look at other listings.

Female to male NPT thread gender

The critical specification is the 1 in FNPT to 1-1/2 in MNPT thread configuration, which determines whether the bushing matches the existing conduit ends. Verify the conduit trade sizes and thread direction before ordering.

Highlights

  • Reduces conduit size from 1-1/2 in to 1 in for flexible routing
  • Threaded female-to-male ends enable secure IMC and RMC connections
  • Aluminium construction resists corrosion in harsh industrial environments
  • Rated for Class I Division 1 and 2 hazardous locations
  • Compact 7/8 in length fits tight enclosure spaces

Specifications

BrandHUBBELL KILLARK
TypeCable Management & Conduit

Questions about this item

What thread standard do the 1 in FNPT and 1 1/2 in MNPT ends use, and what hazardous-location classes does that connection cover?

The bushing uses NPT threads and is rated for Class I Division 1 and 2 Groups A through D, Class I Zones 1 and 2 Groups IIC, IIB, IIA, and Class II Division 1 and 2 Groups E, F, G.

What are the overall length, height and width so I can confirm it fits inside the enclosure?

Overall length is 7/8 in, overall height is 1 in and overall width is 1 29/32 in.

How do I install the reducing bushing and what is the common mistake to avoid?

Thread the 1 1/2 in MNPT end into the larger IMC or threaded RMC fitting, then thread the 1 in FNPT end onto the smaller conduit; the frequent error is cross-threading the aluminium threads, so start both engagements by hand before tightening.

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