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National Stock Number:
3020-01-146-5747
Federal Supply Class:
3020
National Item Identification Number:
011465747
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:
| 71311752 | 04939 | LOCKHEED MARTIN CORPORATION | | 71311752-001 | 04939 | LOCKHEED MARTIN CORPORATION | | AP32AS-24(NS) | 29440 | W. M. BERG INC |
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Techincal Specification:
| BORE NOMINAL DIAMETER | 0.313 INCHES BOTH ENDS | | BORE STYLE | PLAIN BOTH ENDS | | CRITICALITY CODE JUSTIFICATION | FEAT | | FACE NOMINAL WIDTH | 0.104 INCHES | | HUB NOMINAL DIAMETER | 0.125 INCHES FIRST END | | HUB STYLE DESIGNATOR | PINNED FIRST END | | HUB STYLE DESIGNATOR | PLAIN SECOND END | | HUB NOMINAL DIAMETER | 0.520 INCHES SECOND END | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-764,TYPE 303,COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 303 OVERALL | | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.046 INCHES SECOND END | | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.234 INCHES FIRST END | | PITCH DIAMETER | 0.7500 INCHES NOMINAL | | PRESSURE ANGLE | 20.0000 DEGREES | | SPECIAL FEATURES | WEAPON STSTEM ESSENTIAL | | STYLE DESIGNATOR | PROTRUDING HUBS | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | TEETH QUANTITY | 24 | | TOOTH FORM | STANDARD |
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