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Black rubber O-ring gasket for Dayton booster pump

Dayton

Dayton O-Ring NBR Booster Pump Gasket 21101246001

SKU CH-57V0-9PM1H

NBR gasket for Dayton booster pumps, compatible with Grainger 4HFA6, 4HFA7, 4HFA8 models

  • NBR material resists oil and water in booster pumps
  • Direct fit for Dayton 4HFA6, 4HFA7, 4HFA8 models
  • Gasket seals booster pump connections reliably
  • Dayton brand ensures OEM-quality replacement part
  • New condition guarantees full sealing performance from installation

Dayton Booster Pump O-Ring

This NBR gasket is manufactured by Dayton for use with compatible booster pump models. It serves as a direct replacement seal for maintenance or repair work on Dayton equipment. The part is designed to fit pump assemblies referenced by Grainger numbers 4HFA6, 4HFA7 and 4HFA8.

NBR material for fluid sealing

The gasket uses nitrile rubber (NBR) which provides resistance to oils, water and common hydraulic fluids found in booster pump systems. This material choice helps maintain a reliable seal under typical operating pressures and temperatures. It replaces worn or damaged original seals to restore leak-free performance.

Compatibility limited to listed models

This gasket only fits the specific Dayton booster pump models cross-referenced to Grainger part numbers 4HFA6, 4HFA7 and 4HFA8. It will not seal other pump brands, different Dayton series or unrelated plumbing connections. Verify the exact model number before ordering.

Highlights

  • NBR material resists oil and water in booster pumps
  • Direct fit for Dayton 4HFA6, 4HFA7, 4HFA8 models
  • Gasket seals booster pump connections reliably
  • Dayton brand ensures OEM-quality replacement part
  • New condition guarantees full sealing performance from installation

Specifications

BrandDAYTON

Questions about this item

How often should the NBR gasket on this Dayton booster pump be inspected or replaced?

NBR gaskets typically need inspection during routine pump maintenance and replacement when they show cracking, hardening, or leakage, which varies with fluid type and temperature.

What is the first limitation that appears when this gasket runs continuously in a booster pump?

The NBR material's temperature and chemical resistance limits determine service life; excessive heat or incompatible fluids cause hardening and seal failure first.

Does the NBR gasket generate extra heat or noise when the booster pump operates all day?

The gasket itself produces no heat or noise; it simply seals the pump, so any temperature rise or sound comes from the pump mechanism, not the gasket.

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