| 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) | 00-270-8340 (002708340) |
| NCB Code | USA (00) |
| Manufacturer | Sterling Engine Co Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAQL | BODY STYLE | PLAIN,SOLID |
| ABSX | ATTACHMENT METHOD | MOUNTING HOLE |
| AGJS | PITCH DIAMETER | 3.7029 INCHES NOMINAL |
| AJLA | TEETH QUANTITY | 32 |
| ANTP | BORE STYLE | W/ KEYWAY BOTH ENDS |
| CMLK | MOUNTING HOLE THREAD SERIES DESIGNATOR | UNC AXIALLY THROUGH BODY,FIRST END |
| CMLM | MOUNTING HOLE THREAD QUANTITY PER INCH | 16 AXIALLY THROUGH BODY,FIRST END |
| CQLT | MOUNTING HOLE NOMINAL THREAD SIZE | 0.375 INCHES AXIALLY THROUGH BODY,FIRST END |
| CTQY | MOUNTING HOLE TYPE AND QUANTITY | 3 THREADED AXIALLY THROUGH BODY,FIRST END |
| CWCD | NOMINAL OUTSIDE DIAMETER | 3.9225 INCHES |
| CWMW | TEETH TYPE | SINGLE HELIX |
| CWNH | TOOTH FORM | STANDARD |
| CWNM | TOOTH DIRECTION | RIGHT |
| CWPP | PRESSURE ANGLE | 14.5000 DEGREES |
| CWPZ | HELIX ANGLE | 16.2166 DEGREES |
| CWQL | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 1.313 INCHES FIRST END |
| CWRM | FACE NOMINAL WIDTH | 1.344 INCHES |
| CWRS | BORE NOMINAL DIAMETER | 1.375 INCHES BOTH ENDS |
| CWSN | KEYWAY NOMINAL WIDTH | 0.251 INCHES BOTH ENDS |
| CWSR | NOMINAL DISTANCE FROM BORE CENTER TO KEYWAY BOTTOM | 0.8095 INCHES BOTH ENDS |
| CWTR | HUB STYLE DESIGNATOR | 1 STEP FIRST END |
| CWWH | END NOMINAL LENGTH | 0.7187 INCHES FIRST END |
| CWWN | END NOMINAL DIAMETER | 1.9681 INCHES FIRST END |
| CWWS | FIRST STEP NOMINAL LENGTH | 0.5938 INCHES FIRST END |
| CWXB | FIRST STEP NOMINAL DIAMETER | 2.375 INCHES FIRST END |
| CWZN | BOLT HOLE CIRCLE NOMINAL DIAMETER | 2.500 INCHES AXIALLY THROUGH BODY,FIRST END |
| FEAT | SPECIAL FEATURES | 2 PULLER HOLES 90 DEG FROM KEYWAY ON HUB END,1/2-13 THD SIZE BY 5/8 IN. DEEP; COUNTERBORE 2ND END,0.500 IN. DEEP BY 1.7505 IN. DIA |
| MATT | MATERIAL | STEEL COMP 3140 OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | FED STD 66 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| STYL | STYLE DESIGNATOR | PROTRUDING HUB |
| Relevant Components for NSN - 3020-00-270-8340, 3020002708340 | ||||
| 3040-00-037-4479 (3040000374479) | 3010-01-283-8383 (3010012838383) | 3040-01-167-7076 (3040011677076) | 3040-01-607-0785 (3040016070785) | |
| 3020-00-173-7380 (3020001737380) | 3040-01-271-7503 (3040012717503) | 3040-00-690-2219 (3040006902219) | 3040-01-031-7475 (3040010317475) | |
| 3020-01-289-1372 (3020012891372) | 3040-01-171-1542 (3040011711542) | 3030-01-367-5013 (3030013675013) | 3020-01-281-7479 (3020012817479) | |
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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