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Product ID : R49
R49 Four Hole Round Ceramic Tube Insulator, OD (in)=0.250, ID (in)=0.078
Description
More details on associated web pages:
Four Hole Round Ceramic Tube Insulators
The following four hole alumina ceramic tube type insulators are available in six inch lengths.Ceramic Tubes
(Catalog A58)

The following two hole alumina ceramic tube type insulators are available in six inch lengths.

The following four hole alumina ceramic tube type insulators are available in six inch lengths.

Premium wide mouth plastic bottles feature our superior double seal
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Alumel is a nickel/aluminum magnetic alloy used in the production of thermocouples and thermocouple extension wires.

O-Rings are available in five different materials from Scientific Instrument Services.

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This convenient o-ring kit contains 30 of the most popular sizes, for a total of 380 o-rings, in one convenient kit.

The tubes are constructed of a pure 99% alumina ceramic that has superior gas and vacuum tightness and excellent insulating properties even at elevated temperatures.