NSN 5133-00-177-7272

Part Details | MACHINE COUNTERBORE

5133-00-177-7272 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: RCA56687, RCA56-687, 5133-00-177-7272, 00-177-7272, 5133001777272, 001777272

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
51FEB 01, 197100-177-727205259 ( COUNTERBORE, MACHINE )
REFERENCE DRAWINGS & PICTURES

STRAIGHT ROUND

COUNTERBORE,MACHINE | 5133-00-177-7272, 001777272

DOUBLE TWIST W/SCREW POINT

COUNTERBORE,MACHINE | 5133-00-177-7272, 001777272
Cross Reference | NSN 5133-00-177-7272
Part Number Cage Code Manufacturer
RCA56-68783324ARCONIC GLOBAL FASTENERS & RINGS,INC.
Technical Data | NSN 5133-00-177-7272
Characteristic Specifications
HARDNESS RATING40.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM
CUTTING END STYLE1 DOUBLE TWIST W/SCREW POINT
SHANK STYLE STRAIGHT ROUND
OVERALL LENGTH4.120 INCHES NOMINAL
NOMINAL CUTTING DIAMETER0.8870 INCHES
FLUTE QUANTITY4
FEATURES PROVIDED INTEGRAL PILOT
PILOT DIAMETER0.686 INCHES NOMINAL