# NSN 3020-00-745-7738: Gear, Helical

NSN 3020-00-745-7738 (also written 3020007457738; NIIN 00-745-7738) is a gear, helical in Federal Supply Class 3020, Gears, Pulleys, Sprockets, and Transmission Chain. 7 manufacturer part numbers from 4 suppliers are on record. It was last purchased in Oct 2026.

## Identification

- NSN: 3020-00-745-7738 (3020007457738)
- NIIN: 00-745-7738 (007457738)
- Item name: GEAR,HELICAL
- Federal Supply Class: [FSC 3020 Gears, Pulleys, Sprockets, and Transmission Chain](https://nsnexplorer.com/fsc/3020/)
- Federal Supply Group: [FSG 30](https://nsnexplorer.com/group/30/)
- Acquisition method suffix code: AMSC C: needs engineering source approval; other sources must qualify first. (observed 2026-10-20)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| CWPP | PRESSURE ANGLE | DEGREES 16.0000 |
| CQFM | HARDNESS RATING | OVERALL ROCKWELL C MINIMUM 26.0 AND ROCKWELL C MAXIMUM 32.0 |
| CWPZ | HELIX ANGLE | DEGREES 19.0114 |
| ANTP | BORE STYLE | — |
| CWNM | TOOTH DIRECTION | RIGHT |
| AJLA | TEETH QUANTITY | 78 |
| CBBL | FEATURES PROVIDED | SINGLE HELIX |
| CWSN | KEYWAY NOMINAL WIDTH | BOTH ENDS INCHES 0.252 |
| CWSR | NOMINAL DISTANCE FROM BORE CENTER TO KEYWAY BOTTOM | BOTH ENDS INCHES 0.717 |
| CWTR | HUB STYLE DESIGNATOR | — |
| CWTX | HUB NOMINAL DIAMETER | FIRST END INCHES 2.187 |
| MATT | MATERIAL | OVERALL STEEL |
| STYL | STYLE DESIGNATOR | — |
| CWQR | NOMINAL DISTANCE BETWEEN BODY FACE AND RECESSED HUB END | FIRST END INCHES 0.063 |
| CWRM | FACE NOMINAL WIDTH | INCHES 1.188 |
| CWRS | BORE NOMINAL DIAMETER | BOTH ENDS INCHES 1.187 |
| CWCD | NOMINAL OUTSIDE DIAMETER | INCHES 8.495 |
| CWNH | TOOTH FORM | STANDARD |
| AAQL | BODY STYLE | — |
| AGAV | END ITEM IDENTIFICATION | GRUMMAN AEROSPACE A-10 AIRCRAFT |
| AGJS | PITCH DIAMETER | INCHES NOMINAL 8.2500 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 5121815 | 71934 | GENERAL MOTORS CORP ROCHESTER PRODUCTS DIV | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 5121815 | 72582 | ROLLS-ROYCE SOLUTIONS AMERICA INC DBA ROLLS-ROYCE SOLUTIONS AMERICA INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 5121815 | 97907 | TEREX CORP | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 5153270 | 72582 | ROLLS-ROYCE SOLUTIONS AMERICA INC DBA ROLLS-ROYCE SOLUTIONS AMERICA INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 5173322 | 72582 | ROLLS-ROYCE SOLUTIONS AMERICA INC DBA ROLLS-ROYCE SOLUTIONS AMERICA INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 5176458 | 72582 | ROLLS-ROYCE SOLUTIONS AMERICA INC DBA ROLLS-ROYCE SOLUTIONS AMERICA INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| K-5121815-D | 18954 | KORODY-COLYER CORP A CR INDUSTRIES CO | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-10-19 | [SPE7LX20D0136/SPE7LX27F1921](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=3020007457738) | GEAR, HELICAL | PENN POWER GROUP LLC DIV GOVERNMENT SERVICES DEPARTMENT | $1,346.48 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=3020007457738&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=3020007457738
- AMSC record: https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/
- USAspending contract actions (each award above links to its record)
- All data is public U.S. government data; every row above links to its source record where one exists.

Canonical page: https://nsnexplorer.com/nsn/3020-00-745-7738/
JSON: https://nsnexplorer.com/api/nsn/3020-00-745-7738.json