| 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) | 00-851-4716 (008514716) |
| NCB Code | USA (00) |
| Manufacturer | Caterpillar Inc, Holt Bros |
| MRC | Criteria | Characteristic |
|---|---|---|
| AGJS | PITCH DIAMETER | 4.2000 INCHES NOMINAL |
| CQFM | HARDNESS RATING | 77.0 ROCKWELL C MINIMUM OVERALL AND 81.0 ROCKWELL C MAXIMUM OVERALL |
| CWCD | NOMINAL OUTSIDE DIAMETER | 4.400 INCHES |
| CWNM | TOOTH DIRECTION | LEFT |
| CWQL | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.314 INCHES FIRST END |
| CWSN | KEYWAY NOMINAL WIDTH | 0.189 INCHES BOTH ENDS |
| FEAT | SPECIAL FEATURES | 45 DEG 3.156 IN. DIA COUNTERSINK IN BORE ON 1ST END,LETTER B STAMPED ON CENTER LINE OF TOOTH 73 DEG 5 MIN 54 SEC CCW FROM CENTER LINE OF KEYWAY,LETTER C STAMPED ON CENTERLINE OF TOOTH 130 DEG 54 MIN 6 SEC CW FROM CENTER LINE OF KEYWAY |
| AAQL | BODY STYLE | PLAIN,SOLID |
| AJLA | TEETH QUANTITY | 40 |
| ANTP | BORE STYLE | W/ KEYWAY BOTH ENDS |
| CWMW | TEETH TYPE | SINGLE HELIX |
| CWNH | TOOTH FORM | STANDARD |
| CWPP | PRESSURE ANGLE | 20.0000 DEGREES |
| CWPZ | HELIX ANGLE | 17.7528 DEGREES |
| CWRM | FACE NOMINAL WIDTH | 0.750 INCHES |
| CWRS | BORE NOMINAL DIAMETER | 2.566 INCHES BOTH ENDS |
| CWSR | NOMINAL DISTANCE FROM BORE CENTER TO KEYWAY BOTTOM | 1.385 INCHES BOTH ENDS |
| CWTR | HUB STYLE DESIGNATOR | PLAIN FIRST END |
| CWTX | HUB NOMINAL DIAMETER | 3.500 INCHES FIRST END |
| MATT | MATERIAL | STEEL OVERALL |
| STYL | STYLE DESIGNATOR | PROTRUDING HUB |
| Components Related to NSN - 3020-00-851-4716, 3020008514716 | ||||
| 3040-00-629-0362 (3040006290362) | 3040-01-234-8620 (3040012348620) | 3020-01-101-4335 (3020011014335) | 3020-01-562-7499 (3020015627499) | |
| 3010-12-341-6369 (3010123416369) | 3030-00-269-9725 (3030002699725) | 3040-01-075-5718 (3040010755718) | 3040-00-470-5284 (3040004705284) | |
| 3020-00-288-1341 (3020002881341) | 3030-01-554-9311 (3030015549311) | 3020-01-196-0384 (3020011960384) | 3040-00-969-8827 (3040009698827) | |
If You’re Ever Looking for NSN parts Or Have an Aircraft On Ground Situation, Don’t forget That We offer Competitive Pricing and Guaranteed On-Time Delivery.
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