# NSN 5331-01-664-0594: O-Ring

NSN 5331-01-664-0594 (also written 5331016640594; NIIN 01-664-0594) is an o-ring in Federal Supply Class 5331, O-Rings. 1 manufacturer part number from 1 supplier is on record. It was last purchased in Oct 2026.

## Identification

- NSN: 5331-01-664-0594 (5331016640594)
- NIIN: 01-664-0594 (016640594)
- 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 Q: the government lacks adequate data or rights, but breakout to competition is expected. (observed 2026-10-23)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| MATT | MATERIAL | RUBBER SYNTHETIC |
| CXCY | PART NAME ASSIGNED BY CONTROLLING AGENCY | SEAL - O - RING |
| ADVN | CROSS-SECTIONAL HEIGHT | INCHES NOMINAL 0.14 |
| ADYT | CENTER HOLE DIAMETER | INCHES NOMINAL 1.61 |
| AGAV | END ITEM IDENTIFICATION | 01-567-4930 |
| FEAT | SPECIAL FEATURES | COATED WITH POLYTETRAFLUOROETHYLENE (PTFE) |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 346-4897 | 11083 | CATERPILLAR INC DIV CATERPILLAR DEFENSE | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-10-22 | [SPE7LX21D0087/SPE7LX27FA64N](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5331016640594) | O-RING | ATLANTIC DIVING SUPPLY, INC. DBA ADS | $13.29 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5331016640594&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5331016640594
- 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/5331-01-664-0594/
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