40 kr
Straight brass nipple that sits between the distributor's vacuum pipe and the carburettor. All dimensions are exactly like the original. The external thread is 1/8 NPT approx. 10mm if you measure with a caliper. In the female part, the vacuum tube fits with the original dimension 3/16″ = 4.8mm outer diameter of the tube.
Replace the vacuum tube at the same time, it is often damaged in the cone that meets the brass nipple.
If you want, you can brush on a thin layer of gasket adhesive on the joints before installing the plug. But it often seals anyway, because the gang is conical.
National Pipe Thread is an American standard that includes tapered and straight threads. NPT are the conical threads, where the T in the abbreviation stands for tapered (conical), and NPS the straight (straight). NPT threads all have the same taper, 3/4 inch per foot. Pipes and fittings with this type of thread are found primarily in sizes from 1/8 inch up to and including 2 inches.
