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Steel conduit hole seal, 1.06 inch diameter, for 0.75 inch conduit

HOFFMAN

HOFFMAN AS075 Conduit Hole Seal 1.06 in Steel

SKU CH-3CJ5-DRV7S

Seals unused 1.06 in pushbutton or conduit holes with a steel cover for 0.75 in conduit

  • Product typeElectrical Replacement Parts
  • Seals unused conduit holes with 1.06 in diameter steel cover
  • Fits 0.75 in conduit openings for secure closure
  • Steel construction resists corrosion in electrical installations
  • Designed for pushbutton and conduit hole sealing applications
  • NVENT HOFFMAN brand ensures reliable electrical component quality

Purpose and fit

The HOFFMAN AS075 conduit hole seal closes a 1.06 in opening in electrical enclosures. It is intended for installers who need to blank off an unused pushbutton or conduit entry while maintaining the integrity of the box.

Thermal noise and power

This passive steel seal generates no heat, produces no noise and draws no power. It simply blocks the aperture, so the enclosure’s existing thermal and acoustic performance remains unchanged.

Build and daily use

The steel construction resists corrosion and mechanical damage in industrial environments. The seal fits a 1.06 in hole diameter and matches a 0.75 in conduit size, allowing quick installation without specialised tools.

How it compares

Measured against everything we stock in Electrical Enclosures & Cabinets, at today’s prices. Recalculated every night.

Price $11.99
Cheaper than about 80% of the 1,411 comparable items (median $39.99).

Specifications

Product
Brand nameNVENT HOFFMAN
Product typeElectrical Replacement Parts

Questions about this item

How do you install the HOFFMAN AS075 seal into a 1.06 in hole and what step is often missed?

Insert the steel seal into the 1.06 in diameter hole and tighten the locknut until the gasket compresses fully; the step often missed is verifying the gasket seats evenly around the entire circumference before final torque.

What maintenance or replacement will the steel conduit hole seal need over time?

The steel body and gasket require no scheduled replacement; inspect the gasket for cracking or compression set during periodic enclosure checks and replace the seal only if the gasket no longer forms a tight barrier.

What is the first limit that appears when the seal is exposed to sustained vibration or thermal cycling?

The gasket material will reach its compression limit before the steel body, gradually losing its ability to maintain a dust-tight and water-tight seal around the 1.06 in opening.

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