Specification Brand : Murphy by Enovation Controls BulletPoint : The inner threads of this 3/8 A Bulb Adapter Nut measure 5/8-18 UNF, while the outer threads measure 3/8-18 NPT allowing you to make a non-standard connection to match your application. DriveSystem : External Hex ItemName : Murphy by Enovation Controls Adapter Nut, 3/8 A Bulb (10050069) ItemTypeKeyword : temperature-controllers Manufacturer : Murphy by Enovation Controls NumberOfItems : 1 PartNumber : Adapter Nut (10050069) ProductDescription : The standard threading size at the end of a temperature gage capillary tube is 5/8-18 UNF (Union Nut). The inner threads of this 3/8 A Bulb Adapter Nut measure 5/8-18 UNF, to make the correct connection to the stationary end of the temperature gage capillary tube. The outer threads measure 3/8-18 NPT allowing you to make a non-standard connection to match your application, which is generally a connection to the coolant bath of your engine block. ProductSiteLaunchDate : 2019-12-03T23:15:04.823Z Size : Onesize SupplierDeclaredDgHzRegulation : not_applicable UnitCount : 1