NSN 5133-00-253-5469

Part Details | COUNTERSINK

5133-00-253-5469 An angular cutting tool, usually made with angular relief, having one or more flutes with specific size angle cutting edges. It is used for chamfering and countersinking holes. The tool may have a straight shank, tapered shank, bit stock shank or special shank requiring a special holder, for holding in a power- or hand-operated machine. It may be designed to be driven or turned by means of a wrench or carpenter's brace. For items requiring a holder but the holder is not included, use CUTTER, COUNTERSINK.

Alternate Parts: MM3124, MM312-4, 5133-00-253-5469, 00-253-5469, 5133002535469, 002535469

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
51JUL 23, 196900-253-546905260 ( COUNTERSINK )
REFERENCE DRAWINGS & PICTURES

STRAIGHT ROUND

DOUBLE TWIST W/SCREW POINT

Cross Reference | NSN 5133-00-253-5469
Part Number Cage Code Manufacturer
MM312-408295MARTIN AIRCRAFT TOOL COMPANY
Technical Data | NSN 5133-00-253-5469
Characteristic Specifications
HARDNESS RATING40.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM
CUTTING END STYLE8 DOUBLE TWIST W/SCREW POINT
BODY DIAMETER0.438 INCHES NOMINAL
INCLUDED ANGLE100.0 DEGREES NOMINAL
SHANK STYLE STRAIGHT ROUND
SHANK DIAMETER0.250 INCHES NOMINAL
OVERALL LENGTH1.688 INCHES MINIMUM AND 2.250 INCHES MAXIMUM
CUTTING ROTATION DIRECTION RIGHT-HAND
FLUTE QUANTITY3