An adapter having machine threads (straight threads other than pipe or hose series) designed to accommodate a tube on one end or an unthreaded end designed to accommodate a tube. the other end has external or internal machine threads (straight threads other than pipe or hose series) and is designed to facilitate a gasket, preformed packing, washer, or the like to form a seal at the boss. it is designed to join a tube or tube fitting to a boss or boss fitting in a straight line on items such as tanks, housings, valve fittings, and the like. see also coupling, tube and nipple, tube.
PIPE,TUBING,OR PIPE OR TUBING FITTI
Federal Supply Class (FSC)
Hose Pipe Tube Lubrication And Railing Fittings
| Hose, Pipe, Tube, Lubrication, And Railing Fittings