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 | ||||
| 3030-01-150-3662 (3030011503662) | 3040-01-606-3617 (3040016063617) | 3020-01-622-0253 (3020016220253) | 3020-00-070-1696 (3020000701696) | |
| 3040-01-311-9985 (3040013119985) | 3020-01-477-1079 (3020014771079) | 3040-01-453-5146 (3040014535146) | 3040-01-455-2325 (3040014552325) | |
| 3040-00-370-0147 (3040003700147) | 3020-01-255-8757 (3020012558757) | 3020-00-359-4488 (3020003594488) | 3030-00-232-2496 (3030002322496) | |
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