# NSN 2990-01-239-5316: Control Unit, Speed

NSN 2990-01-239-5316 (also written 2990012395316; NIIN 01-239-5316) is a control unit, speed in Federal Supply Class 2990, Miscellaneous Engine Accessories, Nonaircraft. 2 manufacturer part numbers from 1 supplier are on record. No purchases are on record yet.

## Identification

- NSN: 2990-01-239-5316 (2990012395316)
- NIIN: 01-239-5316 (012395316)
- Item name: CONTROL UNIT,SPEED
- Federal Supply Class: [FSC 2990 Miscellaneous Engine Accessories, Nonaircraft](https://nsnexplorer.com/fsc/2990/)
- Federal Supply Group: [FSG 29](https://nsnexplorer.com/group/29/)
- Acquisition method suffix code: AMSC C: needs engineering source approval; other sources must qualify first. (observed 2026-10-10)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| TEXT | GENERAL CHARACTERISTICS ITEM DESCRIPTION | BODY DIA 4.562 IN.,O/A LG 5.812 IN.,HEIGHT 8.375 IN.,WIDTH 2.750 IN.,5.000 IN. BETWEEN MOUNTING HOLES,AND 4 HOLES 0.281 DIA. |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| CU673C-23 | 01843 | AMBAC INTERNATIONAL CORPORATION DIV AMBAC INTERNATIONAL | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| CW673C-30U | 01843 | AMBAC INTERNATIONAL CORPORATION DIV AMBAC INTERNATIONAL | [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=2990012395316&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=2990012395316
- 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/2990-01-239-5316/
JSON: https://nsnexplorer.com/api/nsn/2990-01-239-5316.json