# NSN 5331-99-925-2991: O-Ring

NSN 5331-99-925-2991 (also written 5331999252991; NIIN 99-925-2991) is an o-ring in Federal Supply Class 5331, O-Rings. It was last purchased in Sep 2026.

## Identification

- NSN: 5331-99-925-2991 (5331999252991)
- NIIN: 99-925-2991 (999252991)
- Item name: O-RING
- Federal Supply Class: [FSC 5331 O-Rings](https://nsnexplorer.com/fsc/5331/)
- Federal Supply Group: [FSG 53](https://nsnexplorer.com/group/53/)

## Price history

Newest first.

| Date | Unit price | Quantity | Supplier | Agency | Source |
| --- | --- | --- | --- | --- | --- |
| 2026-09-28 | $80.36 | 20 | ECI DEFENSE GROUP, INC. DBA ECI DEFENSE GROUP INC | — | [record](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5331999252991) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-09-28 | [SPE7L326V5500](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5331999252991) | O-RING | ECI DEFENSE GROUP, INC. DBA ECI DEFENSE GROUP INC | $1,607.20 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5331999252991&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5331999252991
- 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/5331-99-925-2991/
JSON: https://nsnexplorer.com/api/nsn/5331-99-925-2991.json