AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Gear Helical |
| Federal Supply Group (FSG) | Mechanical Power Transmission Equipment |
| Federal Supply Class (FSC) | 3020 Gear Pulley Sprocket and Transmission Chain |
| National Item Identification Number (NIIN) | 00-851-4716 (008514716) |
| NCB Code | USA (00) |
| Manufacturer | Holt Bros, Caterpillar Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| AGJS | PITCH DIAMETER | 4.2000 INCHES NOMINAL |
| CQFM | HARDNESS RATING | 77.0 ROCKWELL C MINIMUM OVERALL AND 81.0 ROCKWELL C MAXIMUM OVERALL |
| CWCD | NOMINAL OUTSIDE DIAMETER | 4.400 INCHES |
| CWNM | TOOTH DIRECTION | LEFT |
| CWQL | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.314 INCHES FIRST END |
| CWSN | KEYWAY NOMINAL WIDTH | 0.189 INCHES BOTH ENDS |
| FEAT | SPECIAL FEATURES | 45 DEG 3.156 IN. DIA COUNTERSINK IN BORE ON 1ST END,LETTER B STAMPED ON CENTER LINE OF TOOTH 73 DEG 5 MIN 54 SEC CCW FROM CENTER LINE OF KEYWAY,LETTER C STAMPED ON CENTERLINE OF TOOTH 130 DEG 54 MIN 6 SEC CW FROM CENTER LINE OF KEYWAY |
| AAQL | BODY STYLE | PLAIN,SOLID |
| AJLA | TEETH QUANTITY | 40 |
| ANTP | BORE STYLE | W/ KEYWAY BOTH ENDS |
| CWMW | TEETH TYPE | SINGLE HELIX |
| CWNH | TOOTH FORM | STANDARD |
| CWPP | PRESSURE ANGLE | 20.0000 DEGREES |
| CWPZ | HELIX ANGLE | 17.7528 DEGREES |
| CWRM | FACE NOMINAL WIDTH | 0.750 INCHES |
| CWRS | BORE NOMINAL DIAMETER | 2.566 INCHES BOTH ENDS |
| CWSR | NOMINAL DISTANCE FROM BORE CENTER TO KEYWAY BOTTOM | 1.385 INCHES BOTH ENDS |
| CWTR | HUB STYLE DESIGNATOR | PLAIN FIRST END |
| CWTX | HUB NOMINAL DIAMETER | 3.500 INCHES FIRST END |
| MATT | MATERIAL | STEEL OVERALL |
| STYL | STYLE DESIGNATOR | PROTRUDING HUB |
| Relevant Components for NSN - 3020-00-851-4716, 3020008514716 | ||||
| 3040-01-293-6061 (3040012936061) | 3020-01-092-7507 (3020010927507) | 3020-01-526-6231 (3020015266231) | 3020-01-177-2167 (3020011772167) | |
| 3020-00-418-5559 (3020004185559) | 3040-00-011-9183 (3040000119183) | 3040-00-752-1099 (3040007521099) | 3040-00-423-9886 (3040004239886) | |
| 3020-01-109-4621 (3020011094621) | 3020-01-222-8376 (3020012228376) | 3020-00-875-8283 (3020008758283) | 3040-00-426-1884 (3040004261884) | |
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