Accessories · Accessory

TW O-ring NBR

TW O-ring is developed for union coupling type MK (5572) as primary sealing solution. Material is NBR (Nitrile Butadiene Rubber) in black - resistant to mineral oils, water and normal steam below 100 deg C. Sold as spare part.

Download datasheet (PDF)

NBR Black TW MK O-ring
  • NBR
  • O-ring
  • Spare part
  • TW MK
  • Oil-resistant
  • Black

Technical specifications

The product's key specifications are briefly summarised below.

Type TW O-ring
Material NBR (Nitrile Butadiene Rubber)
Colour Black
Function MK coupling sealing
Manufacturer SKU 5032

Dimensions and ordering

The table shows TW O-ring NBR's standard dimensions.

Dimensions, pressure and vacuum data for TW O-ring NBR
Inner Ø
[mm]		 Weight
[kg/m]		 Article no.
1000.0175033100000

Each dimension has its own article number from the manufacturer.

Frequently asked questions

NBR or Viton?

NBR (5032) is standard spare part for normal TW applications (water, mineral oils, light chemicals below 100 deg C). Viton (5036) is high-temperature and broadly chemical - more expensive but necessary in demanding applications.

How often replace?

Recommended at first sign of leakage. In daily use typically 12-24 months lifetime depending on medium and temperature.