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National Stock Number:
3020-01-075-6674
Federal Supply Class:
3020
National Item Identification Number:
010756674
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:
| 2050583 | 80064 | NAVAL SHIP SYSTEMS COMMAND | | 2640-343X2 | 96169 | ELECTRIC BOAT CORPORATION | | 2640-343X2 PIECE 3 | 96169 | ELECTRIC BOAT CORPORATION | | 845-2050583 | 80064 | NAVAL SHIP SYSTEMS COMMAND | | 845-2050583 PIECE 3 | 80064 | NAVAL SHIP SYSTEMS COMMAND |
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Techincal Specification:
| BORE STYLE | PLAIN BOTH ENDS | | BORE NOMINAL DIAMETER | 2.531 INCHES BOTH ENDS | | CONSTRUCTION | SOLID | | DESIGN TYPE | SPUR ALL GEARS | | HARDNESS RATING | 39.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM OVERALL | | HUB STYLE DESIGNATOR | PLAIN BOTH ENDS | | HUB NOMINAL DIAMETER | 3.062 INCHES SECOND END | | HUB NOMINAL DIAMETER | 3.250 INCHES FIRST END | | HUB NOMINAL LENGTH | 0.402 INCHES SECOND END | | HUB NOMINAL LENGTH | 0.438 INCHES FIRST END | | MATERIAL DOCUMENT AND CLASSIFICATION | 66A1ISI/SAE4340 FED STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 4340 OVERALL | | NOMINAL OVERALL LENGTH | 2.590 INCHES | | NOMINAL OUTSIDE DIAMETER | 3.567 INCHES SECOND GEAR | | NOMINAL OUTSIDE DIAMETER | 4.167 INCHES FIRST GEAR | | SURFACE TREATMENT | OXIDE OVERALL |
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