base pin

base pin

[′bās ‚pin]
(design engineering)
pin
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References in periodicals archive ?
The Wrangler's unfluted cylinder rotates clockwise on a removable base pin and is charged using the loading gate on the right side of the frame.
Shells are ejected by removing the cylinder base pin, pulling out the cylinder and pushing the shells out one at a time with the pin.
To remove the cylinder, the frame-mounted cylinder base pin retaining screw is depressed and the nitre blued base pin is pulled forward and the loading gate opened.
Material Organisation Karwar Naval Base Pin -581308
He makes a base-pin puller so you can remove a tight base pin without marring it with a screwdriver trying to pry it out.
5 base pin will tighten your cylinder up and add the stylish good looks of Elmer Keith's easy-to-grab, hourglass shaped base-pin head.
Another solution was a longer base pin with two notches which allowed it to be pushed backwards, locked in place and then the hammer could not go forward and contact the primer of a cartridge.
Beware the base pin safety on replica Single Action Army revolvers!
Third, and probably the most important, a locking screw has been added to the base pin. This screw engages a detent machined into the barrel to ensure the base pin does not back out under recoil.
This safety is just an extended cylinder base pin. When the spring-loaded base pin "button" on the dished-out portion of the frame in front of the cylinder is pushed in, it frees the cylinder base pin, which can then be pushed in until the rearward portion protrudes out just enough from the back of the frame to block the hammer from falling all the way and striking the primer.