3040-00-977-2919 COUPLING,ANTI BACK Index 5330-00-977-2922 GASKET

National Stock Number:
3020-00-977-2921

Federal Supply Class:
3020

National Item Identification Number:
009772921

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:
43037-022-0027111867EQUITABLE ENGINEERING COMPANY INC.
43037-022-0027129355NAVY, UNITED STATES DEPARTMENT OF THE
55128-094417454TIMKEN GEARS & SERVICES INC.
BAS2432204614TEXTRON SYSTEMS CORPORATION
BAS2432280070LOCKHEED MARTIN CORPORATION


Techincal Specification:
BODY STYLEPLAIN, SOLID
BORE STYLEW/COUNTERBORE COUNTERBORE, FIRST END
BORE NOMINAL DIAMETER4.250 INCHES COUNTERBORE, FIRST END
COUNTERBORE NOMINAL DIAMETER5.249 INCHES COUNTERBORE, FIRST END
COUNTERBORE NOMINAL DEPTH1.156 INCHES COUNTERBORE, FIRST END
END NOMINAL DIAMETER5.625 INCHES FIRST END
END NOMINAL LENGTH0.620 INCHES FIRST END
FACE NOMINAL WIDTH0.875 INCHES
FIRST STEP NOMINAL LENGTH2.365 INCHES FIRST END
FIRST STEP NOMINAL DIAMETER5.751 INCHES FIRST END
HUB STYLE DESIGNATOR2 STEPS FIRST END
HUB STYLE DESIGNATORPLAIN SECOND END
HUB NOMINAL DIAMETER6.250 INCHES SECOND END
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-865,CLASS A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 135M OVERALL
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END0.760 INCHES SECOND END
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END3.365 INCHES FIRST END
NOMINAL OUTSIDE DIAMETER13.953 INCHES
PITCH DIAMETER13.8182 INCHES NOMINAL
PRECISION CLASSIFICATIONQUALITY NUMBER 12
PRESSURE ANGLE25.0000 DEGREES
SECOND STEP NOMINAL DIAMETER6.250 INCHES FIRST END
SECOND STEP NOMINAL LENGTH0.391 INCHES FIRST END
SPECIAL FEATURESEXTERNAL CUT-OUT OF GEAR TEETH WITH RADIUS OF 2.500 IN.
STYLE DESIGNATORPROTRUDING HUBS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-N-290,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTNICKEL OVERALL
TEETH QUANTITY152
TOOTH FORMSTANDARD


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