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National Stock Number:
3020-01-180-6231
Federal Supply Class:
3020
National Item Identification Number:
011806231
Description:
GEAR,ANTIBACKLASH,SPUR
Detail:
An item having one fixed gear and one free gear, both having the same complement of spur gear teeth, mounted on a common hub. The free gear is attached to the fixed gear by springs and operates as one gear. Upon installation with the mating gear, the teeth of the free moving gear are preset to mesh with teeth other than those of the fixed gear. This spring tension between the fixed gear and the free gear eliminates any free motion between the driver and the driven gear. The gear is used where identical and accurate transmitted motion between gears is required.
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Manufacturer Information:
| 13084036 | 58260 | PROGRAM MANAGER ADVANCED ATTACK HELICOPTER BARCOM AMCPM-AAH | | 13084036-1 | 04939 | LOCKHEED MARTIN CORPORATION | | MAB250-50,P2/.345 | 01351 | SOUTHERN GEAR & MACHINE INC | | MM15040 | 06983 | ZAGORA GEAR PRODUCTS INC | | 13084036-1 | 58260 | PROGRAM MANAGER ADVANCED ATTACK HELICOPTER BARCOM AMCPM-AAH |
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Techincal Specification:
| MATERIAL | ALUMINUM ALLOY 2024 FIRST GEAR | | STEEL COMP 303 HUB | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/6,T4 FED SPEC SINGLE MATERIAL RESPONSE FIRST GEAR | | QQ-S-764,COND A FED SPEC SINGLE MATERIAL RESPONSE HUB | | SURFACE TREATMENT | ANODIZE FIRST GEAR | | PASSIVATE HUB | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-A-8625,TY 2,CL 2 MIL SPEC SINGLE TREATMENT RESPONSE FIRST GEAR | | MIL-F-14072,FINISH E300 MIL SPEC SINGLE TREATMENT RESPONSE HUB | | TEETH QUANTITY | 50 | | TOOTH FORM | STANDARD | | PRESSURE ANGLE | 20.0000 DEGREES | | PRECISION CLASSIFICATION | QUALITY NUMBER 12 | | STYLE DESIGNATOR | PROTRUDING HUB | | PITCH DIAMETER | 0.7813 INCHES NOMINAL | | NOMINAL OUTSIDE DIAMETER | 0.813 INCHES | | FACE NOMINAL WIDTH | 0.125 INCHES | | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.220 INCHES FIRST END | | BORE STYLE | PLAIN BOTH ENDS | | BORE NOMINAL DIAMETER | 0.125 INCHES BOTH ENDS | | HUB STYLE DESIGNATOR | PINNED FIRST END | | HUB NOMINAL DIAMETER | 0.375 INCHES FIRST END | | FURNISHED ITEMS AND QUANTITY | 1 RETAINING RING AND | | 1 SPRING |
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