Product Details | SPUR GEAR

3020-00-831-0250 A gear, cylindrical in form, with straight teeth on the outer surface parallel to the axis of the gear. See also GEAR, ANTIBACKLASH, SPUR. For bulk material, see ROD, PINION.

Part Alternates: 7748526, 3020-00-831-0250, 00-831-0250, 3020008310250, 008310250

Mechanical Power Transmission Equipment | Gears, Pulleys, Sprockets, and Transmission Chain

Supply Group (FSG) NSN Assign. NIIN
30 00-831-0250

Drawings & Photos | NSN 3020-00-831-0250


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Technical Data | NSN 3020-00-831-0250

Characteristic Specifications
MATERIAL STEEL OVERALL
HARDNESS RATING 80.0 ROCKWELL C MINIMUM OR 82.5 ROCKWELL C MAXIMUM OVERALL
TEETH QUANTITY 32
TOOTH FORM STUB
PRESSURE ANGLE 20.0000 DEGREES
BACKLASH DESIGNATION GRADE A
STYLE DESIGNATOR 2 PROTRUDING HUB
PITCH DIAMETER 4.0000 INCHES NOMINAL
NOMINAL OUTSIDE DIAMETER 4.248 INCHES
FACE NOMINAL WIDTH 1.250 INCHES
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END 0.781 INCHES FIRST END
BORE STYLE 6 INVOLUTE SPLINE BOTH ENDS
BORE NOMINAL DIAMETER 1.205 INCHES BOTH ENDS
SPLINE QUANTITY 27 BOTH ENDS
SPLINE PITCH DIAMETER 1.1250 INCHES NOMINAL BOTH ENDS
HUB STYLE DESIGNATOR 1 PLAIN FIRST END
HUB NOMINAL DIAMETER 1.870 INCHES FIRST END
BODY STYLE 1 PLAIN, SOLID
ATTACHMENT METHOD MOUNTING HOLE
MOUNTING HOLE TYPE AND QUANTITY 2 THREADED AXIALLY THROUGH BODY, FIRST END
MOUNTING HOLE THREAD SERIES DESIGNATOR UNC AXIALLY THROUGH BODY, FIRST END
MOUNTING HOLE NOMINAL THREAD SIZE 0.375 INCHES AXIALLY THROUGH BODY, FIRST END
BOLT HOLE CIRCLE NOMINAL DIAMETER 2.500 INCHES AXIALLY THROUGH BODY, FIRST END
SPECIAL FEATURES 0.156IN. BY 45.0 DEG CHAMFER ON HUB END,SPLINED BORE COUNTERSUNK TO 0.094IN.BY 45.0 DEG AT HUB END,THREADED MOUNTING HOLES 0.625 IN. DEEP
MANUFACTURERS CODE 19207
DESIGN CONTROL REFERENCE 7748526

Restrictions/Controls & Freight Information | NSN 3020-00-831-0250

Category Code Description
Hazardous Material Indicator CodeNThere is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Category Code Description
No Freight Information