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National Stock Number:
3020-00-401-9261
Federal Supply Class:
3020
National Item Identification Number:
004019261
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:
| 8000582 | 18876 | U S ARMY AVIATION AND MISSILE COMMAND |
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Techincal Specification:
| MATERIAL | STEEL COMP 4140 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD SINGLE MATERIAL RESPONSE AND | | AISI/SAE 4140 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | ZINC OVERALL | | HARDNESS RATING | 32.0 ROCKWELL C MINIMUM AND | | 36.0 ROCKWELL C MAXIMUM OVERALL | | CONSTRUCTION | SOLID | | DESIGN TYPE | SPUR FIRST GEAR | | SPUR SECOND GEAR | | NOMINAL OUTSIDE DIAMETER | 9.7000 INCHES FIRST GEAR | | 2.2500 INCHES SECOND GEAR | | NOMINAL OVERALL LENGTH | 4.688 INCHES | | BORE STYLE | PLAIN BOTH ENDS | | BORE NOMINAL DIAMETER | 0.625 INCHES BOTH ENDS | | HUB STYLE DESIGNATOR | PLAIN BETWEEN FIRST AND SECOND GEAR | | 1 STEP BOTH ENDS | | HUB NOMINAL LENGTH | 1.719 INCHES FIRST END | | 0.969 INCHES SECOND END | | 0.375 INCHES BETWEEN FIRST AND SECOND GEAR | | HUB NOMINAL DIAMETER | 1.250 INCHES BETWEEN FIRST AND SECOND GEAR | | 0.980 INCHES BOTH ENDS | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 18876 | | DESIGN CONTROL REFERENCE | 8000582 |
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