# NSN 5331-01-633-1263: O-Ring

NSN 5331-01-633-1263 (also written 5331016331263; NIIN 01-633-1263) is an o-ring in Federal Supply Class 5331, O-Rings. 2 manufacturer part numbers from 2 suppliers are on record. It was last purchased in Sep 2026.

## Identification

- NSN: 5331-01-633-1263 (5331016331263)
- NIIN: 01-633-1263 (016331263)
- 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 C: needs engineering source approval; other sources must qualify first. (observed 2026-10-10)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| ABHE | OUTSIDE DIAMETER | MILLIMETERS NOMINAL 10.91 |
| ADVN | CROSS-SECTIONAL HEIGHT | MILLIMETERS NOMINAL 1.63 |
| ADYT | CENTER HOLE DIAMETER | MILLIMETERS NOMINAL 7.65 |
| AGAV | END ITEM IDENTIFICATION | MRAP - M-ATV UI |
| CXCY | PART NAME ASSIGNED BY CONTROLLING AGENCY | O-RING |
| FEAT | SPECIAL FEATURES | MATERIAL: FLUOROCARBON FKM; OEM STATES ITEM'S SHELF LIFE IS INDEFINITE |
| MATT | MATERIAL | RUBBER |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 238-5079 | 11083 | CATERPILLAR INC DIV CATERPILLAR DEFENSE | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 4185874 | 75Q65 | OSHKOSH DEFENSE LLC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-09-25 | [SPE7LX21D0087/SPE7LX26FBB5G](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5331016331263) | O-RING | ATLANTIC DIVING SUPPLY, INC. DBA ADS | $4.20 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5331016331263&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5331016331263
- 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/5331-01-633-1263/
JSON: https://nsnexplorer.com/api/nsn/5331-01-633-1263.json