3040-00-689-3221 GEARSHAFT,SPUR Index 3020-00-689-3223 GEAR AY,PLANETARY

National Stock Number:
3020-00-689-3222

Federal Supply Class:
3020

National Item Identification Number:
006893222

Description:
GEAR,SPUR

Detail:
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.


Manufacturer Information:
258424253711NAVAL SEA SYSTEMS COMMAND
258424280064NAVAL SHIP SYSTEMS COMMAND


Techincal Specification:
MATERIALSTEEL OVERALL
HARDNESS RATING58.0 ROCKWELL C MINIMUM AND
62.0 ROCKWELL C MAXIMUM TEETH
TEETH QUANTITY76
TOOTH FORMSTANDARD
PRESSURE ANGLE20.0000 DEGREES
STYLE DESIGNATORPROTRUDING HUBS
PITCH DIAMETER12.6667 INCHES NOMINAL
NOMINAL OUTSIDE DIAMETER12.995 INCHES
FACE NOMINAL WIDTH1.125 INCHES
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END0.855 INCHES FIRST END
0.340 INCHES SECOND END
BORE STYLEINVOLUTE SPLINE BOTH ENDS
BORE NOMINAL DIAMETER1.757 INCHES BOTH ENDS
SPLINE QUANTITY20 BOTH ENDS
SPLINE PITCH DIAMETER1.6667 INCHES NOMINAL BOTH ENDS
HUB STYLE DESIGNATOR1 STEP BOTH ENDS
END NOMINAL LENGTH0.699 INCHES FIRST END
0.685 INCHES SECOND END
END NOMINAL DIAMETER2.363 INCHES FIRST END
2.363 INCHES SECOND END
FIRST STEP NOMINAL LENGTH0.313 INCHES FIRST END
0.313 INCHES SECOND END
FIRST STEP NOMINAL DIAMETER2.563 INCHES FIRST END
2.563 INCHES SECOND END
BODY STYLEWEBBED, WITH LIGHTENING HOLES


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