# NSN 2990-01-593-5321: Cap Assembly, Protective, Muffler-

NSN 2990-01-593-5321 (also written 2990015935321; NIIN 01-593-5321) is a cap assembly, protective, muffler- in Federal Supply Class 2990, Miscellaneous Engine Accessories, Nonaircraft. 5 manufacturer part numbers from 4 suppliers are on record. It was last purchased in Sep 2026.

## Identification

- NSN: 2990-01-593-5321 (2990015935321)
- NIIN: 01-593-5321 (015935321)
- Item name: CAP ASSEMBLY,PROTECTIVE,MUFFLER-
- 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 2026-10-27)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AGAV | END ITEM IDENTIFICATION | 6115-01-561-7455 GENERATOR SET, DIESEL ENGINE |
| CXCY | PART NAME ASSIGNED BY CONTROLLING AGENCY | CAP, RAIN EXHAUST |
| CYPE | PIPE OUTSIDE DIAMETER ACCOMMODATED | INCHES 1.940 |
| MATT | MATERIAL | ALUMINUM ALLOY |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 04-21038 | 30554 | DEPARTMENT OF DEFENSE PROJECT MANAGER-MOBILE ELECTRIC POWER | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 04-21038-3 | 30554 | DEPARTMENT OF DEFENSE PROJECT MANAGER-MOBILE ELECTRIC POWER | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 55X | 4JTC3 | RAIN CAP INC DBA RAIN CAP AUTO TRIM DESIGN | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 55X | 64721 | RAINCAP INDUSTRIAL | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| A028X828 | 44940 | CUMMINS POWER GENERATION INC. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-09-02 | [SPE7L426D61PT/SPE7L026F7091](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=2990015935321) | CAP ASSEMBLY, PROTECTIVE, MUFFLER-EXHAUST | DELA TECHNOLOGY CORPORATION DBA DELA TECHNOLOGY CORP | $957.00 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=2990015935321&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=2990015935321
- 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/2990-01-593-5321/
JSON: https://nsnexplorer.com/api/nsn/2990-01-593-5321.json