The O-Ring, cataloged under National Stock Number 5331-01-286-3125, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Defense Maritime Solutions, Inc.. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | O-Ring |
| FSC / FSG | 5331 — O-ring (FSG 53) |
| Manufacturers | Defense Maritime Solutions, Inc. (CAGE 0EYA6) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-286-3125 |
| Primary Part Number | US-71243 ITEM 8 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Defense Maritime Solutions, Inc. |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| H/45112/2/1618 | Defense Maritime Solutions, Inc. (USA) |
| US-71243 ITEM 8 PRIMARY | Defense Maritime Solutions, Inc. (USA) |
| Reference | Meaning |
|---|---|
| US-71243 ITEM 8 | 5/9 Secondary reference Wartsila Lips Inc |
| H/45112/2/1618 | 5/9 Secondary reference Wartsila Lips Inc |
| US-71243 ITEM 8 | 5/9 Secondary reference John Crane, Inc |
| H/45112/2/1618 | 5/9 Secondary reference John Crane, Inc |
NSN 5331-01-286-3125 is a O-Ring, manufactured by Defense Maritime Solutions, Inc., classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-286-3125 has 2 manufacturer part numbers on file: H/45112/2/1618 (Defense Maritime Solutions, Inc.), US-71243 ITEM 8 (Defense Maritime Solutions, Inc.).
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.