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) | 00-517-0639 (005170639) |
| NCB Code | USA (00) |
| Manufacturer | Nacco Materials Handling Group Inc, Hercules Engine Co Inc, Brinkley Technology Group Llc |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAQL | BODY STYLE | WEBBED,OFFSET,SOLID |
| AGJS | PITCH DIAMETER | 5.4432 INCHES NOMINAL |
| AJLA | TEETH QUANTITY | 42 |
| ANTP | BORE STYLE | W/ KEYWAY BOTH ENDS |
| CQFM | HARDNESS RATING | 12.7 ROCKWELL C MINIMUM OVERALL AND 21.9 ROCKWELL C MAXIMUM OVERALL |
| CWCD | NOMINAL OUTSIDE DIAMETER | 5.641 INCHES |
| CWMW | TEETH TYPE | SINGLE HELIX |
| CWNH | TOOTH FORM | STANDARD |
| CWNM | TOOTH DIRECTION | RIGHT |
| CWPP | PRESSURE ANGLE | 14.5000 DEGREES |
| CWPZ | HELIX ANGLE | 39.5167 DEGREES |
| CWQR | NOMINAL DISTANCE BETWEEN BODY FACE AND RECESSED HUB END | 0.125 INCHES BOTH ENDS |
| CWRM | FACE NOMINAL WIDTH | 0.875 INCHES |
| CWRS | BORE NOMINAL DIAMETER | 1.594 INCHES BOTH ENDS |
| CWSN | KEYWAY NOMINAL WIDTH | 0.189 INCHES BOTH ENDS |
| CWSR | NOMINAL DISTANCE FROM BORE CENTER TO KEYWAY BOTTOM | 0.893 INCHES BOTH ENDS |
| CWTR | HUB STYLE DESIGNATOR | PLAIN BOTH ENDS |
| CWTX | HUB NOMINAL DIAMETER | 2.313 INCHES FIRST END |
| CWTX | HUB NOMINAL DIAMETER | 2.313 INCHES SECOND END |
| FEAT | SPECIAL FEATURES | TIMING MARK 4 DEG 8 MIN 33 SEC CCW FROM CENTER LINE OF KEYWAY CHAMFER END,0.062 IN. BY 30 DEG CHAMFER ONE END OF BORE |
| MATT | MATERIAL | STEEL OVERALL |
| STYL | STYLE DESIGNATOR | RECESSED HUBS |
| Relevant Components for NSN - 3020-00-517-0639, 3020005170639 | ||||
| 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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