| 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) | 00-251-7556 (002517556) |
| NCB Code | USA (00) |
| Manufacturer | Mtu America Inc, General Motors Corp |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAQL | BODY STYLE | WEBBED,WITH LIGHTENING HOLES |
| AGJS | PITCH DIAMETER | 4.6668 INCHES NOMINAL |
| AJLA | TEETH QUANTITY | 44 |
| ANTP | BORE STYLE | W/ KEYWAY BOTH ENDS |
| CQFM | HARDNESS RATING | 21.0 ROCKWELL C MINIMUM OVERALL AND 28.0 ROCKWELL C MAXIMUM OVERALL |
| CWCD | NOMINAL OUTSIDE DIAMETER | 4.9144 INCHES |
| CWMW | TEETH TYPE | SINGLE HELIX |
| CWNH | TOOTH FORM | STANDARD |
| CWNM | TOOTH DIRECTION | RIGHT |
| CWPP | PRESSURE ANGLE | 16.0000 DEGREES |
| CWPZ | HELIX ANGLE | 19.4657 DEGREES |
| CWRM | FACE NOMINAL WIDTH | 0.594 INCHES |
| CWRS | BORE NOMINAL DIAMETER | 0.624 INCHES BOTH ENDS |
| CWSN | KEYWAY NOMINAL WIDTH | 0.127 INCHES BOTH ENDS |
| CWSR | NOMINAL DISTANCE FROM BORE CENTER TO KEYWAY BOTTOM | 0.378 INCHES BOTH ENDS |
| CWTR | HUB STYLE DESIGNATOR | PLAIN BOTH ENDS |
| CWTX | HUB NOMINAL DIAMETER | 1.000 INCHES BOTH ENDS |
| MATT | MATERIAL | IRON OVERALL |
| STYL | STYLE DESIGNATOR | FLUSH HUB |
| Relevant Components for NSN - 3020-00-251-7556, 3020002517556 | ||||
| 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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