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) | 00-657-8527 (006578527) |
| NCB Code | USA (00) |
| Manufacturer | Allis Chalmers Corp |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAQL | BODY STYLE | WEBBED,SOLID |
| ABSX | ATTACHMENT METHOD | MOUNTING HOLE |
| AGJS | PITCH DIAMETER | 9.2520 INCHES NOMINAL |
| AJLA | TEETH QUANTITY | 42 |
| ANTP | BORE STYLE | PLAIN BOTH ENDS |
| CQFM | HARDNESS RATING | 58.0 ROCKWELL C MINIMUM OVERALL AND 65.0 ROCKWELL C MAXIMUM OVERALL |
| CTQY | MOUNTING HOLE TYPE AND QUANTITY | 6 PLAIN AXIALLY THROUGH HUB,FIRST END |
| CWCD | NOMINAL OUTSIDE DIAMETER | 9.650 INCHES |
| CWMW | TEETH TYPE | SINGLE HELIX |
| CWNH | TOOTH FORM | STANDARD |
| CWNM | TOOTH DIRECTION | RIGHT |
| CWPP | PRESSURE ANGLE | 20.0000 DEGREES |
| CWPZ | HELIX ANGLE | 24.7839 DEGREES |
| CWRM | FACE NOMINAL WIDTH | 1.750 INCHES |
| CWRS | BORE NOMINAL DIAMETER | 3.876 INCHES BOTH ENDS |
| CWTB | COUNTERBORE NOMINAL DEPTH | 0.625 INCHES BOTH ENDS |
| CWTR | HUB STYLE DESIGNATOR | PLAIN BOTH ENDS |
| CWTX | HUB NOMINAL DIAMETER | 6.688 INCHES FIRST END |
| CWTX | HUB NOMINAL DIAMETER | 6.688 INCHES SECOND END |
| CWZK | MOUNTING HOLE NOMINAL DIAMETER | 0.562 INCHES AXIALLY THROUGH HUB,FIRST END |
| CWZN | BOLT HOLE CIRCLE NOMINAL DIAMETER | 4.750 INCHES AXIALLY THROUGH HUB,FIRST END |
| MATT | MATERIAL | STEEL COMP 8620H OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | ED STD 66,AISI/SAE 8620H FED STD 5TH MATERIAL RESPONSE OVERALL |
| STYL | STYLE DESIGNATOR | FLUSH HUB |
| Relevant Components for NSN - 3020-00-657-8527, 3020006578527 | ||||
| 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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