Viewports – Glass with Baffle

Viewports – Glass with Baffle

Viewports can be used to monitor oil levels within a sump housing and provide visual inspection of lubricant condition. Viewports with Baffles are used in turbulent conditions.

To resist corrosion, these viewports are offered in brass or zinc plated steel bodies. The lenses can be removed in the field for cleaning, rather than purchasing and installing a new viewport.


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  • Removable lens allows for cleaning or servicing
  • Plated steel or brass bodies
  • Available in a variety of thread sizes

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Instruction Sheets


Model No.DescriptionMaterialConnectionDim A (in)Dim B (in)Dim C (in)
34305ViewportSteel1/2 NPT7/81/21-3/32
34306ViewportSteel3/4 NPT1-1/83/41-1/8
34307ViewportSteel1 NPT1-5/1611-1/4
34308ViewportSteel1-1/4 NPT1-3/41-1/41-5/16
34309ViewportSteel1-1/2 NPT21-1/21-11/32
34341ViewportBrass1/2 NPT7/81/21-3/32
34342ViewportBrass3/4 NPT1-1/83/41-1/8
34343ViewportBrass1 NPT1-5/1611-1/4
34344ViewportBrass1-1/4 NPT1-3/41-1/41-5/16
34345ViewportBrass1-1/2 NPT21-1/21-11/32
Body Brass, Zinc Plated Steel
Window Glass
Max. Operating Temperature 300ºF (149ºC)
Max. Pressure 50 PSI
Seal Viton®

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