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National Stock Number:
3020-00-042-3946
Federal Supply Class:
3020
National Item Identification Number:
000423946
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:
| 1340063 | 10001 | NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER | | 1340063-150 | 10001 | NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER | | L310014090 | 36090 | LOCKHEED MARTIN LIBRASCOPE CORP |
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Techincal Specification:
| ATTACHMENT METHOD | MOUNTING HOLE | | BORE STYLE | PLAIN BOTH ENDS | | BORE NOMINAL DIAMETER | 0.187 INCHES BOTH ENDS | | FACE NOMINAL WIDTH | 0.125 INCHES | | HUB NOMINAL DIAMETER | 0.375 INCHES FIRST END | | HUB STYLE DESIGNATOR | PINNED FIRST END | | MATERIAL DOCUMENT AND CLASSIFICATION | 52S-H32,AEROFLEX LABORATORIES MFR REF SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | ALUMINUM ALLOY OVERALL | | MOUNTING HOLE NOMINAL THREAD SIZE | 0.112 INCHES TRANSVERSELY THROUGH HUB, FIRST END | | MOUNTING HOLE THREAD SERIES DESIGNATOR | UNC TRANSVERSELY THROUGH HUB, FIRST END | | MOUNTING HOLE TYPE AND QUANTITY | 1 THREADED TRANSVERSELY THROUGH HUB, FIRST END | | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.200 INCHES FIRST END | | NOMINAL OUTSIDE DIAMETER | 1.581 INCHES | | PITCH DIAMETER | 1.5625 INCHES NOMINAL | | PRECISION CLASSIFICATION | QUALITY NUMBER 12 | | PRESSURE ANGLE | 20.0000 DEGREES | | STYLE DESIGNATOR | PROTRUDING HUB | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-A-8625,TYPE 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | ANODIZE OVERALL | | TEETH QUANTITY | 150 | | TOOTH FORM | STANDARD |
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