The O-Ring, cataloged under National Stock Number 5331-01-456-2682, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Kongsberg Maritime Finland Oy. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 5331-01-456-2682 |
| Primary Part Number | 280 087 04 ITEM 25 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Kongsberg Maritime Finland Oy |
| Status | ACTIVE |
| Cross-Sectional Height | 4.0 MILLIMETERS NOMINAL MM |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR |
| 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 |
|---|---|
| 280 087 04 ITEM 25 | Kongsberg Maritime Finland Oy (FIN) |
| 102-026-02 | Kamewa Usa Inc (USA) |
| Reference | Meaning |
|---|---|
| 449-7551 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 102-026-02 | C/1 Advisory reference — outside the item-of-supply concept Kongsberg Maritime Finland Oy |
| 102-026-02 | 3/9 Design control — primary reference Rolls-Royce Oy Ab |
| 280 087 04 ITEM 25 | 5/9 Secondary reference Rolls-Royce Oy Ab |
NSN 5331-01-456-2682 is a O-Ring, manufactured by Kongsberg Maritime Finland Oy, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-456-2682 has 2 manufacturer part numbers on file: 280 087 04 ITEM 25 (Kongsberg Maritime Finland Oy), 102-026-02 (Kamewa Usa Inc).
Key specifications for 280 087 04 ITEM 25: Cross-Sectional Height: 4.0 MILLIMETERS NOMINAL MM; Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR. 2 specifications are documented in the U.S. Government catalog.
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.