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| Item Name | Gear Spur |
| Federal Supply Group (FSG) | Mechanical Power Transmission Equipment |
| Federal Supply Class (FSC) | 3020 Gear Pulley Sprocket and Transmission Chain |
| National Item Identification Number (NIIN) | 00-550-7143 (005507143) |
| NCB Code | USA (00) |
| Manufacturer | Army United States Department Of The |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAQL | BODY STYLE | WEBBED,SOLID |
| ABSX | ATTACHMENT METHOD | MOUNTING HOLE |
| AGJS | PITCH DIAMETER | 14.0000 INCHES NOMINAL |
| AJLA | TEETH QUANTITY | 56 |
| ANTP | BORE STYLE | W/ 3 KEYWAYS BOTH ENDS |
| BDZQ | BACKLASH DESIGNATION | GRADE E |
| CMLK | MOUNTING HOLE THREAD SERIES DESIGNATOR | UNF AXIALLY THROUGH BODY,FIRST END |
| CMLK | MOUNTING HOLE THREAD SERIES DESIGNATOR | UNF AXIALLY THROUGH BODY,SECOND END |
| CMLM | MOUNTING HOLE THREAD QUANTITY PER INCH | 32 AXIALLY THROUGH BODY,FIRST END |
| CQFM | HARDNESS RATING | 30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM OVERALL |
| CQLT | MOUNTING HOLE NOMINAL THREAD SIZE | 0.190 INCHES AXIALLY THROUGH BODY,FIRST END |
| CQLT | MOUNTING HOLE NOMINAL THREAD SIZE | 0.190 INCHES AXIALLY THROUGH BODY,SECOND END |
| CTQY | MOUNTING HOLE TYPE AND QUANTITY | 2 THREADED AXIALLY THROUGH BODY,SECOND END |
| CTQY | MOUNTING HOLE TYPE AND QUANTITY | 8 THREADED AXIALLY THROUGH BODY,FIRST END |
| CWCD | NOMINAL OUTSIDE DIAMETER | 14.397 INCHES |
| CWFR | NOMINAL OVERALL LENGTH | 2.995 INCHES |
| CWNH | TOOTH FORM | STUB |
| CWPP | PRESSURE ANGLE | 20.0000 DEGREES |
| CWQL | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.505 INCHES FIRST END |
| CWQR | NOMINAL DISTANCE BETWEEN BODY FACE AND RECESSED HUB END | 0.500 INCHES SECOND END |
| CWRM | FACE NOMINAL WIDTH | 2.090 INCHES |
| CWRS | BORE NOMINAL DIAMETER | 3.812 INCHES BOTH ENDS |
| CWSN | KEYWAY NOMINAL WIDTH | 0.748 INCHES BOTH ENDS |
| CWSR | NOMINAL DISTANCE FROM BORE CENTER TO KEYWAY BOTTOM | 2.226 INCHES BOTH ENDS |
| CWTR | HUB STYLE DESIGNATOR | PLAIN BOTH ENDS |
| CWTX | HUB NOMINAL DIAMETER | 5.375 INCHES FIRST END |
| CWTX | HUB NOMINAL DIAMETER | 5.375 INCHES SECOND END |
| CWZN | BOLT HOLE CIRCLE NOMINAL DIAMETER | 12.875 INCHES AXIALLY THROUGH BODY,FIRST END |
| CWZN | BOLT HOLE CIRCLE NOMINAL DIAMETER | 7.000 INCHES AXIALLY THROUGH BODY,SECOND END |
| MATT | MATERIAL | STEEL OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-11415 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| SFTT | SURFACE TREATMENT | PHOSPHATE OVERALL |
| STYL | STYLE DESIGNATOR | ONE PROTRUDING HUB,ONE RECESSED HUB |
| Relevant Components for NSN - 3020-00-550-7143, 3020005507143 | ||||
| 3020-01-453-0767 (3020014530767) | 3020-00-488-6478 (3020004886478) | 3040-01-619-0668 (3040016190668) | 3040-01-064-8157 (3040010648157) | |
| 3040-01-272-6698 (3040012726698) | 3040-00-373-3122 (3040003733122) | 3040-01-123-3013 (3040011233013) | 3010-00-317-1201 (3010003171201) | |
| 3020-00-706-8331 (3020007068331) | 3040-01-251-9993 (3040012519993) | 3020-00-832-6414 (3020008326414) | 3040-01-257-4717 (3040012574717) | |
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