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| 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) | 00-385-7953 (003857953) |
| NCB Code | USA (00) |
| Manufacturer | Army United States Department Of The |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAQL | BODY STYLE | WEBBED,SOLID |
| ABSA | SPLINE QUANTITY | 10 BOTH ENDS |
| AGJS | PITCH DIAMETER | 3.4167 INCHES NOMINAL |
| AJLA | TEETH QUANTITY | 27 |
| ANTP | BORE STYLE | STRAIGHT SPLINE BOTH ENDS |
| CQFM | HARDNESS RATING | 33.0 ROCKWELL C MINIMUM OVERALL AND 35.0 ROCKWELL C MAXIMUM OVERALL |
| CWCD | NOMINAL OUTSIDE DIAMETER | 3.6667 INCHES |
| CWFR | NOMINAL OVERALL LENGTH | 2.125 INCHES |
| CWMW | TEETH TYPE | SINGLE HELIX |
| CWNH | TOOTH FORM | STANDARD |
| CWNM | TOOTH DIRECTION | LEFT |
| CWPP | PRESSURE ANGLE | 14.5000 DEGREES |
| CWPZ | HELIX ANGLE | 8.9583 DEGREES |
| CWQL | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.032 INCHES SECOND END |
| CWQL | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.968 INCHES FIRST END |
| CWRM | FACE NOMINAL WIDTH | 1.125 INCHES |
| CWTB | COUNTERBORE NOMINAL DEPTH | 1.429 INCHES SECOND END |
| CWTG | COUNTERBORE NOMINAL DIAMETER | 1.125 INCHES SECOND END |
| CWTR | HUB STYLE DESIGNATOR | PLAIN BOTH ENDS |
| CWTX | HUB NOMINAL DIAMETER | 1.625 INCHES FIRST END |
| CWTX | HUB NOMINAL DIAMETER | 1.625 INCHES SECOND END |
| FEAT | SPECIAL FEATURES | SPLINE MINOR DIA. 1.025 IN. NOM |
| MATT | MATERIAL | STEEL COMP 4142H OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | 66 AISI/SAE 4145 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| SFTT | SURFACE TREATMENT | PHOSPHATE OVERALL |
| STYL | STYLE DESIGNATOR | PROTRUDING HUBS |
| Relevant Components for NSN - 3020-00-385-7953, 3020003857953 | ||||
| 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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