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National Stock Number:
3020-00-300-2131
Federal Supply Class:
3020
National Item Identification Number:
003002131
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:
| 117D2160 | 05606 | GENERAL DYNAMICS-OTS, INC. |
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Techincal Specification:
| BORE NOMINAL DIAMETER | 1.170 INCHES BOTH ENDS | | BORE STYLE | PLAIN FIRST END | | BORE STYLE | W/COUNTERBORE SECOND END | | CONSTRUCTION | SOLID | | DESIGN TYPE | SPUR FIRST GEAR | | DESIGN TYPE | SPUR SECOND GEAR | | HARDNESS RATING | 30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM OVERALL | | HUB STYLE DESIGNATOR | PLAIN FIRST END | | HUB STYLE DESIGNATOR | PLAIN BETWEEN FIRST AND SECOND GEAR | | HUB NOMINAL DIAMETER | 1.930 INCHES BETWEEN FIRST AND SECOND GEAR | | HUB NOMINAL DIAMETER | 2.000 INCHES FIRST END | | HUB NOMINAL LENGTH | 0.080 INCHES FIRST END | | HUB NOMINAL LENGTH | 0.110 INCHES BETWEEN FIRST AND SECOND GEAR | | MATERIAL DOCUMENT AND CLASSIFICATION | FED STD 66,AISI/SAE 4140 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 4140 OVERALL | | NOMINAL OVERALL LENGTH | 0.595 INCHES | | NOMINAL OUTSIDE DIAMETER | 2.591 INCHES FIRST GEAR | | NOMINAL OUTSIDE DIAMETER | 2.591 INCHES SECOND GEAR | | PRECISION CLASSIFICATION | QUALITY NUMBER 9 ALL GEARS | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-STD-171,FINISH NO.5.3.1.2 OR 5.3.2.2 MIL STD SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | PHOSPHATE OVERALL |
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