3020-01-298-2681 GEAR,SPUR Index 3020-01-298-2683 GEAR,SPUR

National Stock Number:
3020-01-298-2682

Federal Supply Class:
3020

National Item Identification Number:
012982682

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:
1002900705606GENERAL DYNAMICS-OTS, INC.


Techincal Specification:
BODY STYLEWEBBED, WITH LIGHTENING HOLES
BORE NOMINAL DIAMETER0.687 INCHES BOTH ENDS
BORE STYLEPLAIN BOTH ENDS
FACE NOMINAL WIDTH0.300 INCHES
HARDNESS RATING30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM OVERALL
HUB NOMINAL DIAMETER0.930 INCHES BOTH ENDS
HUB STYLE DESIGNATORPLAIN BOTH ENDS
MATERIAL DOCUMENT AND CLASSIFICATIONASTM-A322 ASSN STD 1ST MATERIAL RESPONSE OR ASTM-A331 ASSN STD 2ND MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 4130 OR STEEL COMP 4140 OVERALL
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END0.018 INCHES FIRST END
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END0.030 INCHES SECOND END
NOMINAL OUTSIDE DIAMETER2.995 INCHES
SPECIAL FEATURES6 LIGHTENING HOLES 0.500 IN. DIA
PITCH DIAMETER2.8571 INCHES NOMINAL
PRECISION CLASSIFICATIONQUALITY NUMBER 8
PRESSURE ANGLE20.0000 DEGREES
STYLE DESIGNATORPROTRUDING HUBS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-STD-171 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPHOSPHATE OVERALL
TEETH QUANTITY40
TOOTH FORMSTANDARD


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