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		                        | National Stock Number:
 3020-00-415-6522
 
 Federal Supply Class:
 3020
 
 National Item Identification Number:
 004156522
 
 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.
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 Manufacturer Information:
 
 | 2852307 | 10001 | NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER | 
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 Techincal Specification:
 
 | MATERIAL | STEEL COMP 303 FIRST GEAR |  |  | COPPER ALLOY SECOND GEAR |  | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763,CLASS 303,COND A FED SPEC SINGLE MATERIAL RESPONSE FIRST GEAR |  |  | ASTM B150,ALLOY 623 ASSN STD SINGLE MATERIAL RESPONSE SECOND GEAR |  | SURFACE TREATMENT | PASSIVATE OVERALL |  | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-STD-171,FINISH NO. 5.4.1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |  | CONSTRUCTION | ASSEMBLED |  | DESIGN TYPE | SPUR FIRST GEAR |  |  | SPUR SECOND GEAR |  | NOMINAL OUTSIDE DIAMETER | 0.831 INCHES FIRST GEAR |  |  | 0.664 INCHES SECOND GEAR |  | NOMINAL OVERALL LENGTH | 0.312 INCHES |  | PRECISION CLASSIFICATION | QUALITY NUMBER 10 OR |  |  | QUALITY NUMBER 12 ALL GEARS |  | BORE STYLE | PLAIN BOTH ENDS |  | BORE NOMINAL DIAMETER | 0.188 INCHES BOTH ENDS |  | HUB STYLE DESIGNATOR | PLAIN FIRST END |  |  | PLAIN BETWEEN FIRST AND SECOND GEAR |  | HUB NOMINAL LENGTH | 0.016 INCHES FIRST END |  |  | 0.140 INCHES BETWEEN FIRST AND SECOND GEAR |  | HUB NOMINAL DIAMETER | 0.313 INCHES FIRST END |  |  | 0.500 INCHES BETWEEN FIRST AND SECOND GEAR |  | ATTACHMENT METHOD | MOUNTING HOLE |  | THE MANUFACTURERS DATA |  |  | MANUFACTURERS CODE | 10001 |  | DESIGN CONTROL REFERENCE | 2852307 | 
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