The O-Ring, cataloged under National Stock Number 5331-01-192-1879, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Ge Aviation Systems Ltd. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | Ge Aviation Systems Ltd (CAGE K5294); Allied Defense Industries, Llc Dba Ams Distribution (CAGE 0GD25) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-192-1879 |
| Primary Part Number | 30-781-154-50 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Ge Aviation Systems Ltd |
| 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 |
|---|---|
| 30-781-154-50 | Ge Aviation Systems Ltd (GBR) |
| 30-784-154-50 | Ge Aviation Systems Ltd (GBR) |
| 30-781-154-50 | Allied Defense Industries, Llc Dba Ams Distribution (USA) |
| Reference | Meaning |
|---|---|
| 30-784-154-50 | 3/9 Design control — primary reference Dunlop Aerospace Polymers & Composites |
| 30-784-154-50 | C/1 Advisory reference — outside the item-of-supply concept Meggitt Aerospace Ltd T/a Meggitt Polymers and Composites |
NSN 5331-01-192-1879 is a O-Ring, manufactured by Ge Aviation Systems Ltd, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-192-1879 has 3 manufacturer part numbers on file: 30-781-154-50 (Ge Aviation Systems Ltd), 30-784-154-50 (Ge Aviation Systems Ltd), 30-781-154-50 (Allied Defense Industries, Llc Dba Ams Distribution).
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.