The O-Ring, cataloged under National Stock Number 5331-01-187-9077, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Parker Hannifin Corporation Div O-Ring Division. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-187-9077 |
| Primary Part Number | 139-19357 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Parker Hannifin Corporation Div O-Ring Division |
| Status | ACTIVE |
| Temp Rating | -29.0 CELSIUS AND 204.0 CELSIUS DEGC |
| Cross-Sectional Height | 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN |
| Hardness Rating | 70.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM |
| Elongation Percentage | 125 MAXIMUM |
| Specification/standard Data | 81343-AS3209 GOVERNMENT STANDARD |
| Peripheral Diameter | 2.381 INCHES NOMINAL IN |
| Center Hole Diameter | 2.158 INCHES MINIMUM AND 2.192 INCHES MAXIMUM 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 |
|---|---|
| 139-19357 PRIMARY | Parker Hannifin Corporation Div O-Ring Division (USA) |
| V0779 2-139 PRIMARY | Parker-Hannifin Corp Div O-Ring Division (USA) |
| PRP139-19357 | Parker Hannifin Corporation Div O-Ring Division (USA) |
| AS3209-139 | Aero Stock (FRA) |
| Reference | Meaning |
|---|---|
| AS3209-139 | 5/9 Secondary reference Sae International Dba Sae International |
| SAE-AMS7276 | 3/1 Design control — primary reference Sae International Dba Sae International |
| AS3209-139 | 5/9 Secondary reference U.S. Government activity |
| 5330PL0213665 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 10116836 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 2-139 V779-75 | 5/9 Secondary reference Parker-Hannifin Corp Div O-Ring Division |
NSN 5331-01-187-9077 is a O-Ring, manufactured by Parker Hannifin Corporation Div O-Ring Division, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-187-9077 has 4 manufacturer part numbers on file: 139-19357 (Parker Hannifin Corporation Div O-Ring Division), V0779 2-139 (Parker-Hannifin Corp Div O-Ring Division), PRP139-19357 (Parker Hannifin Corporation Div O-Ring Division), AS3209-139 (Aero Stock).
Key specifications for 139-19357: Temp Rating: -29.0 CELSIUS AND 204.0 CELSIUS DEGC; Cross-Sectional Height: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN; Hardness Rating: 70.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM; Elongation Percentage: 125 MAXIMUM. 8 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.