3020-01-286-0072 GEAR,SPUR Index 3020-01-286-0074 GEAR,SPUR

National Stock Number:
3020-01-286-0073

Federal Supply Class:
3020

National Item Identification Number:
012860073

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:
157D364005606GENERAL DYNAMICS-OTS, INC.


Techincal Specification:
BODY STYLEWEBBED, WITH LIGHTENING HOLES
BORE STYLEPLAIN BOTH ENDS
BORE NOMINAL DIAMETER0.626 INCHES BOTH ENDS
FACE NOMINAL WIDTH0.250 INCHES
MATERIAL DOCUMENT AND CLASSIFICATIONASTM-A322 ASSN STD 1ST MATERIAL RESPONSE OR ASTM-A331 FED SPEC 2ND MATERIAL RESPONSE OVERALL
HUB NOMINAL DIAMETER1.000 INCHES BOTH ENDS
HUB STYLE DESIGNATORPLAIN BOTH ENDS
III HARDNESS RATING33.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
III MATERIALSTEEL COMP 322 OR STEEL COMP 4130 OR STEEL COMP 4140 OVERALL
PITCH DIAMETER4.2500 INCHES NOMINAL
PRESSURE ANGLE20.0000 DEGREES
PROPRIETARY CHARACTERISTICSPACS
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END0.282 INCHES SECOND END
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END0.532 INCHES FIRST END
NOMINAL OUTSIDE DIAMETER4.422 INCHES
STYLE DESIGNATORPROTRUDING HUBS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-STD-171 MIL STD SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPHOSPHATE OVERALL
TEETH QUANTITY51


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