5340-01-307-9069 HANDLE,BAIL Index 3020-01-307-9071 GEAR CLUSTER

National Stock Number:
3020-01-307-9070

Federal Supply Class:
3020

National Item Identification Number:
013079070

Description:
GEAR CLUSTER

Detail:
A cylindrical item having a full 360 degree (6.282 radians) complement of teeth on two or more surfaces. It may be a one-piece casting or composed of two or more separate items firmly held together by welding, rivets, pins, or the like, to form a single unit. It is designed to mount on a shaft. For items consisting of a shaft with an integral complement(s) or gear teeth, see GEARSHAFT (as modified). Excludes GEAR SUBASSEMBLY, SPEED DECREASER.


Manufacturer Information:
1002904105606GENERAL DYNAMICS-OTS, INC.


Techincal Specification:
BORE NOMINAL DIAMETER1.125 INCHES BOTH ENDS
BORE STYLEW/COUNTERBORE SECOND END
CONSTRUCTIONSOLID
COUNTERBORE NOMINAL DEPTH0.060 INCHES SECOND END
COUNTERBORE NOMINAL DIAMETER1.870 INCHES SECOND END
DESIGN TYPESPUR ALL GEARS
HARDNESS RATING30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM OVERALL
HUB NOMINAL LENGTH0.070 INCHES BETWEEN FIRST AND SECOND GEAR
HUB STYLE DESIGNATOR1 STEP BETWEEN FIRST AND SECOND GEAR
HUB NOMINAL DIAMETER2.150 INCHES BETWEEN FIRST AND SECOND GEAR
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 OUTSIDE DIAMETER4.182 INCHES FIRST GEAR
NOMINAL OUTSIDE DIAMETER2.652 INCHES SECOND GEAR
NOMINAL OVERALL LENGTH0.700 INCHES
SPECIAL FEATURES1ST GEAR DATA: 40 TEETH; DIAMETRAL PITCH 10; PITCH DIA. 4.0000; PRESSURE ANGLE 20.0000; 2ND GEAR DATA: 30 TEETH; DIAMETRAL PITCH 12; PITCH DIA. 2.5000; PRESSURE ANGLE 20.0000; 6 LIGHTENING HOLES 0.750 DIA.
PRECISION CLASSIFICATIONQUALITY NUMBER 8 ALL GEARS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-STD-171 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPHOSPHATE OVERALL


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