# NSN 5331-00-001-1971: O-Ring

NSN 5331-00-001-1971 (also written 5331000011971; NIIN 00-001-1971) is an o-ring in Federal Supply Class 5331, O-Rings. 3 manufacturer part numbers from 2 suppliers are on record. The government has 1 open solicitation for it.

## Identification

- NSN: 5331-00-001-1971 (5331000011971)
- NIIN: 00-001-1971 (000011971)
- 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/)
- Acquisition method suffix code: AMSC D: the data needed to compete the part is unavailable or cannot be obtained economically. (observed 2026-10-16)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| ADVN | CROSS-SECTIONAL HEIGHT | INCHES NOMINAL 0.070 |
| ADYT | CENTER HOLE DIAMETER | INCHES NOMINAL 3.360 |
| CQFM | HARDNESS RATING | SHORE DUROMETER A NOMINAL 60.0 |
| MATT | MATERIAL | RUBBER SYNTHETIC |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 100-534-8800 | U1068 | TRELLEBORG SEALING SOLUTIONS (UK) LTD | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 100-534-8809 | U1068 | TRELLEBORG SEALING SOLUTIONS (UK) LTD | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 5605-5815-001 | K0656 | BAE SYSTEMS (OPERATIONS) LIMITED | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Open solicitations

| Solicitation | Quantity | Closes | Link |
| --- | --- | --- | --- |
| SPE7L1-27-T-1596 | 1 | 2026-10-26 | [DIBBS](https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5331000011971&category=nsn) |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5331000011971&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5331000011971
- 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/5331-00-001-1971/
JSON: https://nsnexplorer.com/api/nsn/5331-00-001-1971.json