Home | Ordering Guide | Metric Feedthrough Model Numbers Shaft Type S Solid shaft H Hollow shaft Shaft Diameter 004 Sizes displayed in millimeters Mounting F Flange M Mini-flange N Nut S Screw T Sleeve Cooling / Clamp C Clamp M Water cooling and clamp N No water cooling, no clamp W Water cooling Fluid F Fluorocarbon based (reactive gasses) L Standard hydrocarbon Bearing Configuration C Both on atmosphere side H Heavy duty N Standard (vacuum and atmosphere sides) Do You Need More Information? Find out more about Ferrotec’s Ferrofluidic Seals capabilities Contact Sales