Sapphire Washers can be made with larger outer & inner diameter for larger applications. They serve as excellent insulators due to Sapphire's inertness. And because of the material's compressive strength it will stand up to most conditions.
Typical Applications: Insulator, Guide
sapphire washer cross section
|Model||Inside Diameter||Outside Diameter||Thickness||Type|
|SP-170||.186/.190"||.625/.630"||.057/.067"||Top surface only polished|
|SP-175||.311/.315"||.625/.630"||.057/.067"||Top surface only polished|
|SP-178||.750/.760"||.933/.937"||.027/.032"||OD polished only polished|
|SP-180||.160/.167"||.154/.156 MinorOD-- .178/.182Major OD||.106/.109"||No Data|