Tube is measured by outside diameter, pipe is measured by inside diameter.
.375
NB = inside diameter of the tube. OD = outside diameter of the tube.
inside
Less than an inch.
No. A choke tube slips into and screws to the muzzle end of the barrel. It can only decrease the inside diameter.
in the oil pan its called a cartrige filter and its inside a 2.5 inch diameter circuler plastic tube
in the oil pan its called a cartrige filter and its inside a 2.5 inch diameter circuler plastic tube
convex
diameter
Calipers measure the internal or external dimensions of something.
Any measurement smaller than 35mm. That measurement would depend on the thickness of the material making the tube