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Product ID : B242
B242 O-Ring, Material=Buna-N, Nominal ID (in)=4, Nominal Width (in)=1/8, Actual ID (in)=3.984, Actual Width (in)=0.139
Description
More details on associated web page:
Buna-N O-Rings
O-Rings are available in five different materials from Scientific Instrument Services.

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

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

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

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

PVC cord reinforced vacuum hose.
Light weight, low cost, and superior corrosion resistance.
Ideal for mass spec, food, and other applications.

A superior electrical insulation for Heaters, Elements and Furnaces

Longer pump nipple for vacuum hose attachment or for custom
welding applications.