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Black nitrile rubber hydraulic seal, 30 by 39 by 6 millimetres

Unique-Bargains

Unique-Bargains Hydraulic Seal 30mm x 39mm x 6mm

SKU CH-ZJF9-XEA50

A 30mm x 39mm x 6mm nitrile rubber hydraulic seal rated for -22 °F to 212 °F and 90 durometer hardness

  • Wide temperature range from -30 °C to 100 °C
  • Nitrile rubber construction with 90 durometer hardness
  • Fits 30 mm inner and 39 mm outer diameters
  • Low 6 mm profile suits compact assemblies
  • Designed for hydraulic and reciprocating applications

Hydraulic Seal 30mm x 39mm x 6mm

This nitrile rubber seal fits piston shafts with a 30mm inner diameter and 39mm outer diameter. It is designed for hydraulic and reciprocating environments where reliable oil sealing is required. The compact 6mm height suits narrow-section glands in industrial and automotive machinery.

Installation notes

The seal presses into the gland by hand or with a soft tool; avoid sharp edges that could nick the 90 durometer nitrile. Lubricate the lip with compatible hydraulic fluid before assembly to prevent dry-start damage. Incorrect groove dimensions or contaminated fluid are the most common causes of premature leakage.

Temperature range -30°C to 100°C

Continuous operation is rated from -22°F to 212°F, so the seal remains flexible in cold starts and resists hardening at high temperatures. Buyers needing service outside this range should select a different elastomer.

Highlights

  • Wide temperature range from -30 °C to 100 °C
  • Nitrile rubber construction with 90 durometer hardness
  • Fits 30 mm inner and 39 mm outer diameters
  • Low 6 mm profile suits compact assemblies
  • Designed for hydraulic and reciprocating applications

Specifications

BrandUnique Bargains

Questions about this item

How can I confirm the seal is functioning correctly after installation?

After fitting the 30 mm inner diameter by 39 mm outer diameter seal, run the hydraulic system and check for zero leakage at the piston shaft while the fluid temperature stays between -22 °F and 212 °F.

What comes in the package and do I need any extra parts?

The box contains one nitrile rubber hydraulic seal measuring 30 mm × 39 mm × 6 mm; no additional components or tools are included.

Which size should I choose for my application?

Select this seal only if your cylinder bore is 39 mm, the piston rod is 30 mm and the groove depth is 6 mm.

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