3020-00-254-8829 GEAR,WORM Index 2540-00-254-8841 MIRROR ASSEMBLY,REARVIEW

National Stock Number:
3020-00-254-8840

Federal Supply Class:
3020

National Item Identification Number:
002548840

Description:
GEAR,WORM WHEEL

Detail:
A GEAR, CYLINDRICAL IN FORM, WITH SPIRAL TEETH DESIGNED TO MESH WITH THE THREAD FORMS OF A GEAR (1), WORM. SEE ALSO GEAR, ANTIBACKLASH, WORM WHEEL.


Manufacturer Information:
7415157712TELEMECHANICS INC
7415170408AT AND T CORP


Techincal Specification:
MATERIALPLASTIC PHENOLIC OVERALL
SURFACE TREATMENTVARNISH OVERALL
TEETH QUANTITY35
TOOTH DIRECTIONLEFT
FACE TYPECONCAVE
THROAT NOMINAL RADIUS0.250 INCHES
MATING THREAD LEAD QUANTITY2
PRESSURE ANGLE14.5000 DEGREES
HELIX ANGLE9.4667 DEGREES
STYLE DESIGNATORHUBLESS
PITCH DIAMETER1.6640 INCHES NOMINAL
NOMINAL OUTSIDE DIAMETER1.844 INCHES
FACE NOMINAL WIDTH0.531 INCHES
BORE STYLEPLAIN BOTH ENDS
BORE NOMINAL DIAMETER0.500 INCHES BOTH ENDS
BODY STYLEPLAIN, SOLID
ATTACHMENT METHODMOUNTING HOLE
MOUNTING HOLE TYPE AND QUANTITY3 COUNTERBORED AXIALLY THROUGH BODY, FIRST END
MOUNTING HOLE NOMINAL DIAMETER0.156 INCHES AXIALLY THROUGH BODY, FIRST END
BOLT HOLE CIRCLE NOMINAL DIAMETER0.875 INCHES AXIALLY THROUGH BODY, FIRST END


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