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		                             National Stock Number: 3020-00-537-3587
  Federal Supply Class: 3020
  National Item Identification Number: 005373587
  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:
 | 284140 | 56232 | LOCKHEED MARTIN CORPORATION |   
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  Techincal Specification:
 | ATTACHMENT METHOD | MOUNTING HOLE |  | BORE NOMINAL DIAMETER | 0.250 INCHES BOTH ENDS |  | BORE STYLE | PLAIN BOTH ENDS |  | CONSTRUCTION | SOLID |  | DESIGN TYPE | SPUR SECOND GEAR |  | DESIGN TYPE | SPUR FIRST GEAR |  | HUB NOMINAL LENGTH | 0.094 INCHES BETWEEN FIRST AND SECOND GEAR |  | HUB NOMINAL LENGTH | 0.219 INCHES FIRST END |  | HUB STYLE DESIGNATOR | PINNED FIRST END |  | HUB NOMINAL DIAMETER | 0.5000 INCHES BETWEEN FIRST AND SECOND GEAR |  | MATERIAL | COPPER ALLOY OVERALL |  | NOMINAL OUTSIDE DIAMETER | 0.6670 INCHES SECOND GEAR |  | NOMINAL OUTSIDE DIAMETER | 2.5420 INCHES FIRST GEAR |  | NOMINAL THREAD SIZE | 0.086 INCHES BOTH ENDS |  | THREAD SERIES DESIGNATOR | UNC BOTH ENDS |   
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