3020-00-155-4379 GEAR,SPUR Index 3020-00-155-4381 GEAR,SPUR

National Stock Number:
3020-00-155-4380

Federal Supply Class:
3020

National Item Identification Number:
001554380

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:
116C37805606GENERAL DYNAMICS-OTS, INC.
116C378105606GENERAL DYNAMICS-OTS, INC.


Techincal Specification:
BODY STYLEPLAIN, WITH LIGHTENING HOLES
BORE STYLEINVOLUTE SPLINE BOTH ENDS
BORE NOMINAL DIAMETER0.779 INCHES BOTH ENDS
FACE NOMINAL WIDTH0.650 INCHES
HARDNESS RATING25.0 ROCKWELL C NOMINAL HUB
HARDNESS RATING60.0 ROCKWELL C NOMINAL TEETH
HUB NOMINAL DIAMETER1.000 INCHES BOTH ENDS
HUB STYLE DESIGNATORPLAIN BOTH ENDS
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-624,COMP 8620-CANCELED FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 8620 OVERALL
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END0.120 INCHES SECOND END
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END0.310 INCHES FIRST END
NOMINAL OUTSIDE DIAMETER3.115 INCHES
PITCH DIAMETER3.0000 INCHES NOMINAL
PRECISION CLASSIFICATIONQUALITY NUMBER 9
PRESSURE ANGLE20.0000 DEGREES
SPLINE QUANTITY23 BOTH ENDS
SPLINE PITCH DIAMETER0.7188 INCHES NOMINAL BOTH ENDS
STYLE DESIGNATORPROTRUDING HUBS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL STD 171,FINISH 5.3.1.2 OR 5.3.2.2 MIL STD SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPHOSPHATE OVERALL
TEETH QUANTITY48
TOOTH FORMSTANDARD


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