The O-Ring, cataloged under National Stock Number 5331-01-071-9549, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Parker-Hannifin Corp Div O-Ring Division. Government technical data includes 6 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-071-9549 |
| Primary Part Number | 2-042C944-70 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Parker-Hannifin Corp Div O-Ring Division |
| Status | ACTIVE |
| Temp Rating | -35.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF |
| Cross-Sectional Height | 0.071 INCHES NOMINAL IN |
| Outside Diameter | 3.349 INCHES MINIMUM AND 3.409 INCHES MAXIMUM IN |
| Hardness Rating | 70.0 SHORE DUROMETER A NOMINAL |
| Center Hole Diameter | 3.188 INCHES NOMINAL IN |
| Material | RUBBER |
| 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 |
|---|---|
| 2-042 | Parker-Hannifin Corp Div O-Ring Division (USA) |
| 182741129 | Leonardo S.p.a. - Electronics Division - Defence Business Area (ITA) |
| 2-042C944-70 PRIMARY | Parker-Hannifin Corp Div O-Ring Division (USA) |
| Reference | Meaning |
|---|---|
| 2-042 C944-70 | 5/9 Secondary reference Parker Hannifin Gmbh O-Ring Division |
| 2-042 | 5/9 Secondary reference U.S. Government activity |
| 2-042 | 5/9 Secondary reference U.S. Government activity |
NSN 5331-01-071-9549 is a O-Ring, manufactured by Parker-Hannifin Corp Div O-Ring Division, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-071-9549 has 3 manufacturer part numbers on file: 2-042 (Parker-Hannifin Corp Div O-Ring Division), 182741129 (Leonardo S.p.a. - Electronics Division - Defence Business Area), 2-042C944-70 (Parker-Hannifin Corp Div O-Ring Division).
Key specifications for 2-042C944-70: Temp Rating: -35.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF; Cross-Sectional Height: 0.071 INCHES NOMINAL IN; Outside Diameter: 3.349 INCHES MINIMUM AND 3.409 INCHES MAXIMUM IN; Hardness Rating: 70.0 SHORE DUROMETER A NOMINAL. 6 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.