The O-Ring, cataloged under National Stock Number 5331-01-425-1878, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Trelleborg Sealing Solutions Us, Inc.. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5331-01-425-1878 |
| Primary Part Number | ORMA000579XXXMA |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Trelleborg Sealing Solutions Us, Inc. |
| Status | ACTIVE |
| Cross-Sectional Height | 5.7 MILLIMETERS NOMINAL MM |
| Hardness Rating | 70.0 SHORE DUROMETER A NOMINAL |
| Center Hole Diameter | 299.3 MILLIMETERS NOMINAL MM |
| 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 |
|---|---|
| 462484 | Interface Systems Inc (USA) |
| 462484 | Cargotec Usa Div Macgregor Usa (USA) |
| ORMA000579XXXMA PRIMARY | Trelleborg Sealing Solutions Us, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 21-10606 IT 14 | C/1 Advisory reference — outside the item-of-supply concept Macgregor Sweden Ab |
| 462484 | C/1 Advisory reference — outside the item-of-supply concept Trelleborg Ersmark Ab |
| 462484 | 5/9 Secondary reference Trelleborg Ersmark Ab |
| 21-10606 IT 14 | 5/9 Secondary reference Macgregor Sweden Ab |
NSN 5331-01-425-1878 is a O-Ring, manufactured by Trelleborg Sealing Solutions Us, Inc., classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-425-1878 has 3 manufacturer part numbers on file: 462484 (Interface Systems Inc), 462484 (Cargotec Usa Div Macgregor Usa), ORMA000579XXXMA (Trelleborg Sealing Solutions Us, Inc.).
Key specifications for ORMA000579XXXMA: Cross-Sectional Height: 5.7 MILLIMETERS NOMINAL MM; Hardness Rating: 70.0 SHORE DUROMETER A NOMINAL; Center Hole Diameter: 299.3 MILLIMETERS NOMINAL MM. 3 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.