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National Stock Number:
3820-00-282-4951
Federal Supply Class:
3820
National Item Identification Number:
002824951
Description:
DRILL ROD,ROCK DRILL
Detail:
A STRAIGHT METAL ROD WITH A SHANK AT ONE END TO FIT THE DRILLING MACHINE CHUCK, AND THE OPPOSITE END EXTERNALLY THREADED OR TAPERED TO RECEIVE A DETACHABLE BIT. THE ROD HAS A PASSAGEWAY THROUGHOUT ITS ENTIRE LENGTH FOR CONDUCTING AIR OR WATER TO CLEAR THE HOLE BEING DRILLED. OVERALL LENGTH MUST BE AT LEAST 15 INCHES (381 MM). EXCLUDES DRILL RODS DESIGNED FOR CORE DRILLING. SEE ALSO DRILL ROD SECTION, ROCK DRILL; AND SHANK, ROD, ROCK DRILL.
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Techincal Specification:
| ATTACHMENT METHOD | THREADED BOTTOM DRIVE | | OVERALL LENGTH | 27.250 INCHES NOMINAL | | MANUFACTURER THREAD DESIGN DESIGNATION | TIMKEN ROLLER BEARING CO SERIES H | | MATERIAL | STEEL | | ROD NOMINAL SIZE | 27.250 INCHES | | SHANK OVERALL LENGTH | 3.250 INCHES NOMINAL | | SHANK STYLE | COLLARED HEXAGON | | WIDTH ACROSS FLATS | 0.875 INCHES NOMINAL |
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