Ideal Vacuum Feedthroughs Calcium Fluoride (CaF2) Viewport, 157 Grade, UHV Rated Vacuum-Optics, 1.88 View Dia, 4.50 Conflat Flange, Viewports, Viewports,  PN  A6772-1-CF

These Ideal Vacuum Feedthroughs Calcium Fluoride (CaF2) Viewport, 157 Grade, UHV Rated Vacuum-Optics, 1.88 View Dia, 4.50 Conflat Flange  have part number A6772-1-CF, are new, and come with full Ideal Vacuum Feedthroughs warranty. Ideal Vacuum manufactures Sapphire and Fused Silica viewports using proprietary vacuum brazing and welding techniques. Fused Silica viewport designs are available with diameters up to 8 inches and include zero length designs for low profile applications. These are all bakeable to 200°C. Several standard grades of Fused Silica windows are offered, having excellent transmission from 193m to 2 microns. DUV Sapphire Specifications are: Leak Rate: <2x10(-10) atm cc/sec He; Parallelism: <3 Arc Minutes; Flange Material: 04/316 Stn. Stl.; Surface Finish: 20/10; Thermal Range: -100°C to 450°C; Material: Sapphire; UV Transmission: 70% @ 250nm (external); Orientation: 0°. UV Sapphire Specifications are: Leak Rate: <2x10(-10) atm cc/sec He; Parallelism: <3 Arc Minutes; Flange Material: 304/316 Stn. Stl.; Surface Finish: 50/20; Thermal Range: -100°C to 450°C; Material: Sapphire; UV Transmission: 50% @ 250nm (external); Orientation: 0°-90. More information about these Ideal Vacuum Feedthroughs Calcium Fluoride (CaF2) Viewport, 157 Grade, UHV Rated Vacuum-Optics, 1.88 View Dia, 4.50 Conflat Flange  can be found by downloading the pdf catalog and documents below. Simply open the pdf catalog below, run the pdf search (ctrl F) and search for the A6772-1-CF.