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Steel conduit hole seal, 1.37 inch diameter, grey finish

HOFFMAN

HOFFMAN AS100 Conduit Hole Seal 1.37 in Steel

SKU CH-FKJV-WVHSS

Steel conduit hole seal closes 1.37-inch openings in electrical enclosures

  • TypeElectrical Replacement Parts
  • Seals 1.37 in conduit holes to maintain enclosure integrity
  • Steel construction resists corrosion in harsh environments
  • Designed for 1 in conduit size for precise fit
  • Closes unused pushbutton openings to prevent debris ingress
  • NVENT HOFFMAN brand ensures industrial-grade reliability

Conduit Hole Seal for 1.37 in Openings

The NVENT HOFFMAN AS100 seals unused pushbutton or conduit holes in electrical boxes. It fits a 1.37 in diameter cutout and matches a 1 in conduit size. Steel construction provides mechanical protection and maintains enclosure integrity. This component is suited for panel builders and maintenance crews closing redundant entries.

Simple press-fit installation with alignment care

The seal presses into the prepared hole without tools or fasteners. Correct orientation ensures the flange seats flush against the enclosure wall. Misalignment can leave a gap that compromises the seal and allows contaminants to enter. Debris on the hole edge is the most common cause of an imperfect fit.

Steel material limits corrosion resistance

The bare steel finish resists physical impact but will oxidise if exposed to moisture or chemicals over time. It is not rated for outdoor or wash-down locations without additional protective coating. The design covers only the stated hole diameter and conduit size; larger or non-standard openings require a different seal. Buyers needing stainless steel or plated finishes for corrosive atmospheres should specify an alternative part.

Highlights

  • Seals 1.37 in conduit holes to maintain enclosure integrity
  • Steel construction resists corrosion in harsh environments
  • Designed for 1 in conduit size for precise fit
  • Closes unused pushbutton openings to prevent debris ingress
  • NVENT HOFFMAN brand ensures industrial-grade reliability

Specifications

BrandNVENT HOFFMAN
TypeElectrical Replacement Parts

Questions about this item

How can I verify the AS100 hole seal is correctly installed on a 1.37 in opening?

After fitting the steel seal into the 1.37 in hole, confirm it sits flush with the enclosure surface and that no light or air passes around the perimeter.

What comes with the AS100 and what must I supply for a 1 in conduit hole?

The package contains the steel hole seal only; mounting hardware and any required sealant are not included and must be sourced separately.

Which HOFFMAN seal should I choose for a 1.37 in hole in a 1 in conduit?

Select the AS100 model, which is sized for a 1.37 in hole diameter and matches 1 in conduit dimensions.

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