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National Stock Number:
3020-00-525-9937
Federal Supply Class:
3020
National Item Identification Number:
005259937
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:
| 117D2971 | 05606 | GENERAL DYNAMICS-OTS, INC. | | 117D2971REVD4 | 05606 | GENERAL DYNAMICS-OTS, INC. | | 117D2971REVD4 | 26420 | ASTRO GEAR AND INSTRUMENT CO INC |
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Techincal Specification:
| ATTACHMENT METHOD | MOUNTING HOLE | | BORE STYLE | W/STEPPED COUNTERBORE FIRST END | | BORE NOMINAL DIAMETER | 0.440 INCHES BOTH ENDS | | CONSTRUCTION | SOLID | | COUNTERBORE NOMINAL DIAMETER | 1.181 INCHES FIRST END | | COUNTERBORE NOMINAL DEPTH | 1.240 INCHES FIRST END | | DESIGN TYPE | SPUR FIRST GEAR | | DESIGN TYPE | SPUR SECOND GEAR | | HARDNESS RATING | 50.0 ROCKWELL C MINIMUM AND 60.0 ROCKWELL C MAXIMUM TEETH | | HUB NOMINAL DIAMETER | 0.751 INCHES SECOND END | | HUB NOMINAL DIAMETER | 2.020 INCHES BETWEEN FIRST AND SECOND GEAR | | HUB STYLE DESIGNATOR | 1 STEP SECOND END | | HUB STYLE DESIGNATOR | 3 STEPS BETWEEN FIRST AND SECOND GEAR | | HUB NOMINAL LENGTH | 0.670 INCHES SECOND END | | HUB NOMINAL LENGTH | 1.080 INCHES BETWEEN FIRST AND SECOND GEAR | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-624 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 8620 OVERALL | | NOMINAL OUTSIDE DIAMETER | 1.556 INCHES SECOND GEAR | | NOMINAL OUTSIDE DIAMETER | 4.550 INCHES FIRST GEAR | | NOMINAL OVERALL LENGTH | 4.120 INCHES | | PRECISION CLASSIFICATION | QUALITY NUMBER 10 ALL GEARS | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-STD-171,FINISH NO.5.3.1 OR NO.5.3.2 MIL STD SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL |
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