Any Ideas?

[AU24K]

Found this yesterday in a schoolyard. It's about 1 1/2" long.
Thanks.
Scott

 

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[72cheyenne]

Actually I think its a temperature sending unit.
http://www.ss396.com/mm5/merchant.m...ecamino&Category_Code=TEMPERATURESENDINGUNITS

Although now that I look at it more closely, the wire looks like it attaches to the threaded end. Not sure how this would mount in a block.

 

[bradyboy]

deep thread and course thread is courious
Tells me hreads into the block and not a pan
copper tang says temp detector
obvious moderd pc
Brady