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Black NBR70 O-ring 12mm inner diameter 2mm thick

Alphacool

Alphacool O-Ring 12 x 2 mm NBR70 95070

SKU CH-M63N-EMG13

Spare NBR70 gasket for groove-less liquid-cooling fittings, 12 mm inner diameter and 2 mm thick for a secure seal

  • ColorBlack
  • FeaturesThis O-ring is a spare gasket for fittings without a groove
  • Reliable seal with 12 mm inner diameter and 2 mm thickness
  • NBR70 material resists oils and coolant for lasting performance
  • Designed for groove-less fittings where standard O-rings may leak
  • Thicker cross-section compensates for missing groove to prevent drips
  • Exact replacement part number 95070 ensures correct fit

Spare gasket for grooveless fittings

This Alphacool O-ring replaces the seal on water-cooling fittings that lack a retaining groove. Its nitrile rubber construction resists common coolants and additives used in custom loops. The 12 mm inner diameter matches standard compression fitting sizes. Builders keeping spare seals for maintenance will find it a direct fit.

Thicker cross-section for reliable sealing

The 2 mm cord diameter is slightly larger than typical groove-mounted rings, allowing the material to compress fully against flat seating surfaces. This extra thickness maintains contact pressure even when the fitting body has no machined channel. Under sustained system pressure the seal remains stable without extrusion. Leak risk during long-term operation is reduced by the generous cross-section.

Limited to static sealing applications

The ring is designed for stationary joints between rigid tubing and fitting bodies, not for rotating or reciprocating components. NBR 70 material handles typical loop temperatures but is not rated for continuous exposure above its published range. Chemical compatibility excludes strong acids, bases or petroleum-based fluids. Installers must verify that the mating surfaces are clean and free of burrs before assembly.

Points forts

  • Reliable seal with 12 mm inner diameter and 2 mm thickness
  • NBR70 material resists oils and coolant for lasting performance
  • Designed for groove-less fittings where standard O-rings may leak
  • Thicker cross-section compensates for missing groove to prevent drips
  • Exact replacement part number 95070 ensures correct fit

Caractéristiques

BrandAlphacool
Model95070
ColorBlack
FeaturesThis O-ring is a spare gasket for fittings without a groove which has a O-ring in it

Questions sur cet article

Does the NBR70 material stay flexible when the loop runs warm all day?

The NBR compound is rated to maintain its elasticity and sealing force across the normal operating temperatures of a liquid-cooling loop.

Which fittings accept this 12 mm inner diameter O-ring as a replacement seal?

It fits any Alphacool or compatible fitting designed for a 12 mm inner diameter and 2 mm cross-section where the original groove is missing or worn.

Will this thicker 2 mm cross-section seal properly against older fittings that have shallow or no grooves?

Yes, the extra thickness compensates for shallow or absent grooves, giving a reliable seal on legacy fittings that originally used thinner rings.

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