Clear All
For Use With For Use With |
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System of Measurement System of Measurement |
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Connection Style Connection Style |
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![]() | Flanged |
Material Material |
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Maximum Temperature Maximum Temperature |
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Mount Type Mount Type | Show |
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Mount Type Mount Type | Hide |
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Maximum Pressure Maximum Pressure |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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Minimum Temperature Minimum Temperature |
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Seal Material Seal Material |
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Connection Type Connection Type |
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| Tube | |
High Vacuum Connection Type High Vacuum Connection Type |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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Maximum Vacuum Maximum Vacuum |
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Shape Shape |
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For Screw Size For Screw Size |
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Flanged Sights

Fasten the extended flange to tank walls. These sights have a shatter-resistant plastic domed window so you can view tank contents from multiple angles.
For technical drawings and 3-D models, click on a part number.
Temp. Range, °F | ||||||||||||
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| Flange OD | Window Dia. | Bolt Circle Dia. | No. of Bolt Holes | For Screw Size | Max. Pressure | Min. | Max. | For Use With | Window Material | Seal Material | Each | |
Zinc | ||||||||||||
| 2 1/4" | 1 1/4" | 1 7/8" | 4 | No. 8 | 10 psi @ 70° F | 0° | 160° | Water, Hydraulic Fluid, Diesel Fuel | Plastic | Buna-N Rubber | 0000000 | 000000 |
High-Vacuum Flanged Sights
Add a window to your high-vacuum system. With a pane of glass sealed inside a high-vacuum CF flange, these sights bolt onto vacuum chambers, tee fittings, and manifolds. Use a copper gasket (sold separately) to create a seal. Not for use with pressure. To illuminate dark interiors, attach an optional light to the flange with set screws.
For technical drawings and 3-D models, click on a part number.
Sights

Sight
Window | Bolt Holes | |||||||||||
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| High-Vacuum Flange Size | Flange OD | For Tube OD | High Vacuum Connection Type | Max. Vacuum | Dia. | Material | Bolt Circle Dia. | No. of | Dia. | Max. Temp., °F | Each | |
304 Stainless Steel | ||||||||||||
| 16 | 1 21/64" | __ | CF | 1 × 10 -11 torr @ 72° F | 5/8" | Glass | 1 1/16" | 6 | 11/64" | 660° | 0000000 | 0000000 |
| 40 | 2 3/4" | __ | CF | 1 × 10 -11 torr @ 72° F | 1 1/2" | Glass | 2 5/16" | 6 | 17/64" | 660° | 0000000 | 000000 |
| 63 | 4 1/2" | __ | CF | 1 × 10 -11 torr @ 72° F | 2 9/16" | Glass | 3 5/8" | 8 | 21/64" | 660° | 0000000 | 000000 |
| 63 | 4 1/2" | 2 1/2" | CF | 1 × 10 -11 torr @ 72° F | 2 5/8" | Glass | 3 5/8" | 8 | 21/64" | 750° | 0000000 | 000000 |
| 100 | 6" | __ | CF | 1 × 10 -11 torr @ 72° F | 3 35/64" | Glass | 5 1/8" | 16 | 21/64" | 660° | 0000000 | 000000 |




























