Physical Electronics Industries Microscope Vacuum Feedthrough

- Optical Scope mounted in a 2-3/4 Conflat flange.
1-1/4 OD tube depth is 5-3/8 from the face of the conflat flange and terminates in a glass to metal seal.
Two knurled set screws hold the scope in place.
Optical information on the end of the tube states 2:1/0.07 F46.8

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