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Replacement O-Rings (Silicone)

These replacement elastomeric o-rings are used (in conjunction with a centering ring -- not included) for sealing KF flanges. The KF (QF) flange is used for through- or foreline vacuum plumbing and for simple HV chamber ports.

O-Rings Feature:

  • O-Rings available in fluorocarbon, Buna-N (nitrile rubber), and silicone materials
  • The more popular o-ring sizes for vacuum use are listed below; contact us for other sizes or for application questions

Dimensional Drawings

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Ordering Table

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