lockpin

English

Etymology

lock +‎ pin

Noun

lockpin (plural lockpins)

1. (chiefly aviation) A pin used to lock a mechanism and prevent it from moving.
   • 1970, US Bureau of Naval Personnel, Aviation Structural Mechanic E 1 & C., page 270:

     The pulling force exerted by the arms will then cause the spring-loaded lockpin retract collar to contact two fiberglass catches in the receptacle.

   • 1989, US Department of the Army, Aviation Unit and Intermediate Maintenance Manual, page 3-54:

     The lockpin housing contains a bushing for the parking lockpin mechanism and a bonded nylon strap.

   • 2008, US Navy, Grumman F6F Hellcat Pilot's Flight Operating Instructions, →ISBN, page 16:

     These safety lockpins, when engaged, prevent the main locking pins from disengaging, regardless of hydraulic pressure.

References

• “lockpin”, in Merriam-Webster Online Dictionary, Springfield, Mass.: Merriam-Webster, 1996–present.