jam nut
Americannoun
Etymology
Origin of jam nut
First recorded in 1860–65
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The eccentric, when in two pieces, is retained at its proper angle on the shaft by a pinching screw, which is provided with a jam nut to prevent it from working loose.
From A Catechism of the Steam Engine by John Bourne, C.E.
If the jam nut has worked loose, the governor will run as usual, except that it will increase its speed as the speed of the engine is increased.
From Rough and Tumble Engineering by James H. Maggard
To increase the speed of the engine loosen this jam nut and take hold of the thumb nut and turn it back slowly, watching the motion of your engine all the while.
From Rough and Tumble Engineering by James H. Maggard
The second nut is a loose jam nut.
From Rough and Tumble Engineering by James H. Maggard
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Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
