The O-Ring, cataloged under National Stock Number 5331-01-312-3742, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Gea Mechanical Equipment Us, Inc. Dba Westfalia Separator Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | Gea Mechanical Equipment Us, Inc. Dba Westfalia Separator Inc (CAGE 6CYU5) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-312-3742 |
| Primary Part Number | 0007-1988-750 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Gea Mechanical Equipment Us, Inc. Dba Westfalia Separator Inc |
| 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 |
|---|---|
| 0007-1988-750 | Gea Mechanical Equipment Us, Inc. Dba Westfalia Separator Inc (USA) |
| Reference | Meaning |
|---|---|
| 0007-1988-750 | 5/9 Secondary reference Westfalia Separator Mineraloil Systems Gmbh |
| 0007-1988-750 | C/1 Advisory reference — outside the item-of-supply concept Gea Westfalia Separator Group Gmbh |
| 0007-1988-750 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5331-01-312-3742 is a O-Ring, manufactured by Gea Mechanical Equipment Us, Inc. Dba Westfalia Separator Inc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-312-3742 has 1 manufacturer part number on file: 0007-1988-750 (Gea Mechanical Equipment Us, Inc. Dba Westfalia Separator 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.