NSN 5133-00-232-9251

Part Details | MACHINE COUNTERBORE

5133-00-232-9251 An end cutting tool having two or more cutting edges with flutes or grooves for the passage of cuttings, an integral or removable holder designed for adaption to the end of a machine spindle. The flutes or grooves are usually helical to give a positive rake at the cutting edges. It is designed to form a flat-bottomed enlargement of the mouth of a previously formed cylindrical hole. For items requiring a holder but the holder is not included, use CUTTER, COUNTERBORE.

Alternate Parts: 878 716, 878 7/16, 878 716, 878 7/16, C46479, 5133-00-232-9251, 00-232-9251, 5133002329251, 002329251

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
51JAN 01, 196300-232-925105259 ( COUNTERBORE, MACHINE )
REFERENCE DRAWINGS & PICTURES

STANDARD TAPER W/TANG

COUNTERBORE,MACHINE | 5133-00-232-9251, 002329251

DOUBLE TWIST W/SCREW POINT

COUNTERBORE,MACHINE | 5133-00-232-9251, 002329251
Cross Reference | NSN 5133-00-232-9251
Part Number Cage Code Manufacturer
878 7/1613130CLEVELAND TWIST DRILL CODIV OF GREENFIELD INDUSTRIES INC
878 7/161NEX4KENNAMETAL INC.DIV KENNAMETAL INDUSTRIAL PRODUCTS
C464791NEX4KENNAMETAL INC.DIV KENNAMETAL INDUSTRIAL PRODUCTS
Technical Data | NSN 5133-00-232-9251
Characteristic Specifications
CUTTING END STYLE DOUBLE TWIST W/SCREW POINT
SHANK STYLE STANDARD TAPER W/TANG
TAPER SHANK SIZE DESIGNATOR1 MORSE
OVERALL LENGTH4.062 INCHES NOMINAL
NOMINAL CUTTING DIAMETER0.4375 INCHES
FLUTE QUANTITY3
FEATURES PROVIDED REPLACEABLE PILOT
PILOT HOLE NOMINAL DIAMETER0.156 INCHES
PILOT DIAMETER0.188 INCHES MINIMUM AND 0.375 INCHES MAXIMUM