4310-01-406-8886 COVER,AIR COMPRESSOR Index 4820-01-406-8888 VALVE,GATE

National Stock Number:
3020-01-406-8887

Federal Supply Class:
3020

National Item Identification Number:
014068887

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:
618145553711NAVAL SEA SYSTEMS COMMAND


Techincal Specification:
MATERIALSTEEL COMP XM-12 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONAMS5659 ASSN STD SINGLE MATERIAL RESPONSE OR
AMS5862 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONASTM A380 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING30.0 ROCKWELL C MINIMUM AND
35.0 ROCKWELL C MAXIMUM OVERALL
TEETH QUANTITY14
PRESSURE ANGLE20.0000 DEGREES
STYLE DESIGNATORPROTRUDING HUBS
PITCH DIAMETER1.7500 INCHES NOMINAL
NOMINAL OUTSIDE DIAMETER1.995 INCHES
FACE NOMINAL WIDTH0.290 INCHES
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END1.350 INCHES FIRST END
1.000 INCHES SECOND END
BORE STYLEPLAIN FIRST END
INVOLUTE SPLINE SECOND END
BORE NOMINAL DIAMETER0.560 INCHES FIRST END
SPLINE QUANTITY15 FIRST END
SPLINE PITCH DIAMETER0.4688 INCHES NOMINAL FIRST END
HUB STYLE DESIGNATORPLAIN FIRST END
1 STEP SECOND END
HUB NOMINAL DIAMETER0.880 INCHES FIRST END
END NOMINAL LENGTH0.910 INCHES SECOND END
END NOMINAL DIAMETER0.874 INCHES SECOND END
FIRST STEP NOMINAL LENGTH0.090 INCHES SECOND END
FIRST STEP NOMINAL DIAMETER1.230 INCHES SECOND END
BODY STYLEPLAIN, SOLID


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