The O-Ring, cataloged under National Stock Number 5331-01-105-9155, 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 6 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through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-105-9155 |
| Primary Part Number | 443-19359 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Parker Hannifin Corporation Div O-Ring Division |
| Status | ACTIVE |
| Cross-Sectional Height | 0.269 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN |
| Outside Diameter | 7.968 INCHES MINIMUM AND 8.082 INCHES MAXIMUM IN |
| Hardness Rating | 90.0 SHORE DUROMETER A NOMINAL |
| Elongation Percentage | 125 MAXIMUM |
| Center Hole Diameter | 7.430 INCHES MINIMUM AND 7.520 INCHES MAXIMUM IN |
| Material | RUBBER FLUOROCARBON CLASS FPM |
| 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 |
|---|---|
| 443-19359 | Parker Hannifin Corporation Div O-Ring Division (USA) |
| PRP443-19359 | Parker Hannifin Corporation Div O-Ring Division (USA) |
| PRP568-443-9009-90 | Parco, Llc (USA) |
| 2-443 V709-90 | Parker-Hannifin Corp Div O-Ring Division (USA) |
| Reference | Meaning |
|---|---|
| A-443SR280-90 | 5/2 Secondary reference U.S. Government activity |
| AS568-443 MIL-R-83248 CLASS 2 | 5/9 Secondary reference U.S. Government activity |
| AS568-443AMS7279 | 5/1 Secondary reference Sae International Dba Sae International |
| NAS1594-443 | 5/9 Secondary reference U.S. Government activity |
| MIL-R-83248/2 | 4/1 Identification reference U.S. Government activity |
| M83248/2-443 | 2/2 Government specification standardization U.S. Government activity |
| AS568-443AMS7279 | 5/9 Secondary reference U.S. Government activity |
| AS568-443 MIL-R-83248 CLASS 2 | 5/1 Secondary reference Sae International Dba Sae International |
NSN 5331-01-105-9155 is a O-Ring, manufactured by Parker Hannifin Corporation Div O-Ring Division, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-105-9155 has 4 manufacturer part numbers on file: 443-19359 (Parker Hannifin Corporation Div O-Ring Division), PRP443-19359 (Parker Hannifin Corporation Div O-Ring Division), PRP568-443-9009-90 (Parco, Llc), 2-443 V709-90 (Parker-Hannifin Corp Div O-Ring Division).
Key specifications for 443-19359: Cross-Sectional Height: 0.269 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN; Outside Diameter: 7.968 INCHES MINIMUM AND 8.082 INCHES MAXIMUM IN; Hardness Rating: 90.0 SHORE DUROMETER A NOMINAL; Elongation Percentage: 125 MAXIMUM. 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.