The O-Ring, cataloged under National Stock Number 5331-01-499-4534, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Fincantieri Marine Systems North America, Inc. Dba Fincantieri Marine Systems North Am. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | O-Ring |
| FSC / FSG | 5331 — O-ring (FSG 53) |
| Manufacturers | Fincantieri Marine Systems North America, Inc. Dba Fincantieri Marine Systems North Am (CAGE 0VP52); Isotta Fraschini Motori Spa (CAGE A0106); Fincantieri S.p.a. Div Direzione Navi Militari (CAGE A3121) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-499-4534 |
| Primary Part Number | D3114447A |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Fincantieri Marine Systems North America, Inc. Dba Fincantieri Marine Systems North Am |
| 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 |
|---|---|
| D3114447A PRIMARY | Fincantieri Marine Systems North America, Inc. Dba Fincantieri Marine Systems North Am (USA) |
| D3114447A | Isotta Fraschini Motori Spa (ITA) |
| D3114447A | Fincantieri S.p.a. Div Direzione Navi Militari (ITA) |
| Reference | Meaning |
|---|---|
| 1S341985 PC I | 5/9 Secondary reference Fincantieri Marine Systems North America, Inc. Dba Fincantieri Marine Systems North Am |
NSN 5331-01-499-4534 is a O-Ring, manufactured by Fincantieri Marine Systems North America, Inc. Dba Fincantieri Marine Systems North Am, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-499-4534 has 3 manufacturer part numbers on file: D3114447A (Fincantieri Marine Systems North America, Inc. Dba Fincantieri Marine Systems North Am), D3114447A (Isotta Fraschini Motori Spa), D3114447A (Fincantieri S.p.a. Div Direzione Navi Militari).
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.