1/4 in Feedthru This item was sourced on www.MFG.com as one of the items in an RFQ in USA for Milling & Turning Production of a vacuum feedthru. Approximately 1.125" dia x 1" long. Brass. 2 O-ring surfaces. Please see drawings for specific dimensions. Part Part Number: 8728-r75590 Material: Laiton Material Grade: brass Technical Specifications Category:Milling & Turning Dimensions0.0 x 0.0 inch Annual Usage:10.0 Get quotes online for manufacturing services at MFG.com from machine shops, fabricators, job shops and contract manufacturers. MFG.com connects buyers and suppliers when the buyer has a need and the supplier has the right expertise and capacity. MFG.com analyzes all engineered parts and RFQs for improved manufacturability and to ensure quality and a quick quoting experience. Milling & Turning: Milling and Turning, or CNC milling and turning will fall in this process, or manual milling is the process used to produce prismatic components. A rotating cylindrical cutter with multiple flutes, commonly called an endmill, traverses along multiple axes to machine features such as slots, pockets and profiles. Turning, CNC turning, or manual turning is the process used to produce cylindrical components. A cylindrical piece of stock is rotated and a cutting tool is traversed along 2 axes of motion to produce precise diameters and depths.