The O-Ring, cataloged under National Stock Number 5331-01-125-1905, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Copeland Lp Dba Copeland Co. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 5331-01-125-1905 |
| Primary Part Number | 020-0003-09 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Copeland Lp Dba Copeland Co |
| Status | ACTIVE |
| Cross-Sectional Height | 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN |
| Center Hole Diameter | 3.094 INCHES MINIMUM AND 3.124 INCHES MAXIMUM IN |
| Material | RUBBER SYNTHETIC |
| 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 |
|---|---|
| 020-0003-09 | Aireco Supply Inc. (USA) |
| 020-0003-09 PRIMARY | Copeland Lp Dba Copeland Co (USA) |
| Reference | Meaning |
|---|---|
| 020-0003-09 | 5/9 Secondary reference Copeland Corp |
| 020-0003-09 | 5/9 Secondary reference U.S. Government activity |
NSN 5331-01-125-1905 is a O-Ring, manufactured by Copeland Lp Dba Copeland Co, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-125-1905 has 2 manufacturer part numbers on file: 020-0003-09 (Aireco Supply Inc.), 020-0003-09 (Copeland Lp Dba Copeland Co).
Key specifications for 020-0003-09: Cross-Sectional Height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN; Center Hole Diameter: 3.094 INCHES MINIMUM AND 3.124 INCHES MAXIMUM IN; Material: RUBBER SYNTHETIC. 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.