Pipe size is the accepted industry designation, not the actual measured size. To determine pipe size, first use a measuring device to measure the outside diameter (OD) or inside dia. (ID), as shown in diagram at right. Then round to nearest dimension listed in the chart and select the corresponding pipe size.

Note: Fitting dimensions as described in this brochure may not reflect running changes made to improve part performance. Check with JACO Manufacturing Company in critical applications. Dimensions are in inches. Select metric sizes are available.

* Operating pressures of JACO Tube Fittings are regulated by ambient and fluid temperatures, type of fluid being carried, tubing type, and conditions of mechanical use. Temperatures listed are designated as material ratings only. Pressures in excess of above specifications in all fitting sizes should be tested by the customer in their particular application.

Note: It is not necessary to designate the nut size when ordering complete units as this will be determined by the tube size indicated in the part number.