The O-Ring, cataloged under National Stock Number 5331-00-907-0026, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Kelly Manufacturing Company. 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-00-907-0026 |
| Primary Part Number | A2479-05 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Kelly Manufacturing Company |
| Status | ACTIVE |
| Temp Rating | -60.0 FAHRENHEIT AND 450.0 FAHRENHEIT DEGF |
| Cross-Sectional Height | 0.044 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN |
| Outside Diameter | 1.962 INCHES MINIMUM AND 2.008 INCHES MAXIMUM IN |
| Hardness Rating | 60.0 SHORE DUROMETER A NOMINAL |
| Center Hole Diameter | 1.881 INCHES MINIMUM AND 1.901 INCHES MAXIMUM IN |
| Material | RUBBER SILICONE CLASS Q |
| 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 |
|---|---|
| A2479-05 PRIMARY | Kelly Manufacturing Company (USA) |
| 5-144S613-6 | Howe Machine & Tool Corp. Dba Howe Machine & Tool Corp (USA) |
| 5-144S613-60 | Parker-Hannifin Corp Div O-Ring Division (USA) |
| Reference | Meaning |
|---|---|
| 5-144 S613-60 | 5/9 Secondary reference Parker Hannifin Gmbh O-Ring Division |
| 5-144S613-6 | 5/9 Secondary reference Parker-Hannifin Corp Div O-Ring Division |
| 5-144S418-6 | 5/9 Secondary reference Parker-Hannifin Corporation Dba Pneutronics Div Corporate Headquarters |
| A2479-05 | 5/9 Secondary reference Allen R C Instruments Inc |
NSN 5331-00-907-0026 is a O-Ring, manufactured by Kelly Manufacturing Company, classified under FSC 5331, O-ring. Status: active.
NSN 5331-00-907-0026 has 3 manufacturer part numbers on file: A2479-05 (Kelly Manufacturing Company), 5-144S613-6 (Howe Machine & Tool Corp. Dba Howe Machine & Tool Corp), 5-144S613-60 (Parker-Hannifin Corp Div O-Ring Division).
Key specifications for A2479-05: Temp Rating: -60.0 FAHRENHEIT AND 450.0 FAHRENHEIT DEGF; Cross-Sectional Height: 0.044 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN; Outside Diameter: 1.962 INCHES MINIMUM AND 2.008 INCHES MAXIMUM IN; Hardness Rating: 60.0 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.