AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Gear Spur |
| Federal Supply Group (FSG) | Mechanical Power Transmission Equipment |
| Federal Supply Class (FSC) | 3020 Gear Pulley Sprocket and Transmission Chain |
| National Item Identification Number (NIIN) | 00-293-4649 (002934649) |
| NCB Code | USA (00) |
| Manufacturer | Textron Lycoming Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAQL | BODY STYLE | WEBBED,WITH LIGHTENING HOLES |
| AGJS | PITCH DIAMETER | 9.7500 INCHES NOMINAL |
| AJLA | TEETH QUANTITY | 78 |
| ANTP | BORE STYLE | W/ KEYWAY BOTH ENDS |
| CQFM | HARDNESS RATING | 22.0 ROCKWELL SUPERFICIAL 30-N NOMINAL TEETH |
| CQFM | HARDNESS RATING | 24.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM HUB |
| CWCD | NOMINAL OUTSIDE DIAMETER | 9.947 INCHES |
| CWFR | NOMINAL OVERALL LENGTH | 0.875 INCHES |
| CWNH | TOOTH FORM | STANDARD |
| CWPP | PRESSURE ANGLE | 20.0000 DEGREES |
| CWQL | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.080 INCHES BOTH ENDS |
| CWRM | FACE NOMINAL WIDTH | 0.715 INCHES |
| CWRS | BORE NOMINAL DIAMETER | 1.390 INCHES BOTH ENDS |
| CWSN | KEYWAY NOMINAL WIDTH | 0.189 INCHES BOTH ENDS |
| CWSR | NOMINAL DISTANCE FROM BORE CENTER TO KEYWAY BOTTOM | 0.791 INCHES BOTH ENDS |
| CWTR | HUB STYLE DESIGNATOR | 1 STEP BOTH ENDS |
| CWWH | END NOMINAL LENGTH | 0.020 INCHES FIRST END |
| CWWH | END NOMINAL LENGTH | 0.030 INCHES SECOND END |
| CWWN | END NOMINAL DIAMETER | 1.720 INCHES FIRST END |
| CWWN | END NOMINAL DIAMETER | 1.720 INCHES SECOND END |
| CWWS | FIRST STEP NOMINAL LENGTH | 0.050 INCHES SECOND END |
| CWWS | FIRST STEP NOMINAL LENGTH | 0.060 INCHES FIRST END |
| CWXB | FIRST STEP NOMINAL DIAMETER | 2.000 INCHES FIRST END |
| CWXB | FIRST STEP NOMINAL DIAMETER | 2.000 INCHES SECOND END |
| MATT | MATERIAL | STEEL OVERALL |
| STYL | STYLE DESIGNATOR | PROTRUDING HUBS |
| Relevant Components for NSN - 3020-00-293-4649, 3020002934649 | ||||
| 3040-99-750-9441 (3040997509441) | 3040-01-309-9880 (3040013099880) | 3020-00-056-1680 (3020000561680) | 3040-01-592-1774 (3040015921774) | |
| 3040-01-340-6053 (3040013406053) | 3040-01-424-7637 (3040014247637) | 3020-00-762-8849 (3020007628849) | 3040-01-411-4890 (3040014114890) | |
| 3020-01-163-7221 (3020011637221) | 3030-00-041-2888 (3030000412888) | 3030-00-421-7151 (3030004217151) | 3040-01-256-3453 (3040012563453) | |
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