# NSN 3020-00-517-2391: Sprocket Wheel

NSN 3020-00-517-2391 (also written 3020005172391; NIIN 00-517-2391) is a sprocket wheel in Federal Supply Class 3020, Gears, Pulleys, Sprockets, and Transmission Chain. 3 manufacturer part numbers from 3 suppliers are on record. No purchases are on record yet.

## Identification

- NSN: 3020-00-517-2391 (3020005172391)
- NIIN: 00-517-2391 (005172391)
- Item name: SPROCKET WHEEL
- 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 D: the data needed to compete the part is unavailable or cannot be obtained economically. (observed 2026-10-10)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AEVF | DISTANCE FROM CENTER OF BORE TO BOTTOM OF KEYWAY | INCHES NOMINAL 0.656 |
| BYFL | TEETH ROW QUANTITY | 1 |
| ABHP | OVERALL LENGTH | INCHES NOMINAL 0.750 |
| ABRR | KEYWAY WIDTH | INCHES NOMINAL 0.250 |
| ARJD | DESIGN FORM | PLAIN |
| ASBP | BORE TYPE | STRAIGHT |
| ALNC | HUB OUTSIDE DIAMETER | AA END INCHES NOMINAL 1.813 |
| ADGE | BORE LENGTH | INCHES NOMINAL 0.750 |
| BYDZ | PROTRUDING HUB CHARACTERISTIC | PLAIN |
| AGJS | PITCH DIAMETER | INCHES NOMINAL 7.165 |
| BFYT | HOLE LOCATION | LOCATED ON TOP OF KEYWAY |
| BYFP | ASA STANDARD CHAIN NUMBER | 35 |
| BYFQ | HARDNESS RATING TEST METHOD | NOT RATED |
| BYGF | TOOTH PITCH | INCHES NOMINAL 0.375 |
| MATT | MATERIAL | STEEL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | MIL SPEC SINGLE MATERIAL RESPONSE -IL--20167,CLASS A |
| NMBR | QUANTITY | 1 |
| STYL | STYLE DESIGNATOR | — |
| ABUJ | THREAD SIZE | 1/4-20 |
| ABXV | BORE DIAMETER | INCHES MINIMUM 1.000 AND INCHES MAXIMUM 1.001 |
| BSGK | KEYING FACILITY TYPE | KEYWAY |
| BYFF | SECURING LOCATION | AA END |
| AHYF | SECURING HOLE QUANTITY | 1 |
| BYFN | TEETH QUANTITY PER ROW | 60 |
| ABFF | FURNISHED ITEMS | KEYING FACILITY |
| ABHE | OUTSIDE DIAMETER | INCHES NOMINAL 7.381 |
| AQPL | FACE WIDTH | INCHES NOMINAL 0.168 |
| ASYR | DISTANCE FROM HUB END TO FLANGE END | AA END INCHES NOMINAL 0.582 |
| BSNP | SECURING METHOD | THREADED HOLE(S) |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| B4304-2 | 16603 | CONTROL FLOW, INC. DBA WESTECH HEAVY MACHINERY DIVISION DIV WESTECH HEAVY MACHINERY DIVISION | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| B4304-2 | 3X894 | CONTROL FLOW, INC. DBA CONTROL FLOW INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| B4304-2 | 82402 | TRIUMPH GEAR SYSTEMS INC DBA TRIUMPH GEAR SYSTEMS INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=3020005172391&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=3020005172391
- AMSC record: https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/
- 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/3020-00-517-2391/
JSON: https://nsnexplorer.com/api/nsn/3020-00-517-2391.json