The O-Ring, cataloged under National Stock Number 5331-01-018-7143, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Freudenberg Fst Gmbh. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | Navantia Sa Sme. Div Navantia Hq (CAGE 0141B); Freudenberg Fst Gmbh (CAGE D2480); Navantia - Propulsion Y Energia Motores - Cartagena (CAGE 409BB) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-018-7143 |
| Primary Part Number | 0634303609 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Freudenberg Fst Gmbh |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 0634303609 | Navantia Sa Sme. Div Navantia Hq (ESP) |
| 0634303609 PRIMARY | Freudenberg Fst Gmbh (DEU) |
| 0634303609 | Navantia - Propulsion Y Energia Motores - Cartagena (ESP) |
| Reference | Meaning |
|---|---|
| 0634303609 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 10024097 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 5331-01-018-7143 is a O-Ring, manufactured by Freudenberg Fst Gmbh, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-018-7143 has 3 manufacturer part numbers on file: 0634303609 (Navantia Sa Sme. Div Navantia Hq), 0634303609 (Freudenberg Fst Gmbh), 0634303609 (Navantia - Propulsion Y Energia Motores - Cartagena).
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.