The O-Ring, cataloged under National Stock Number 5331-00-559-7520, 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 2 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through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5331-00-559-7520 |
| Primary Part Number | PRP041-11647 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Parker Hannifin Corporation Div O-Ring Division |
| Status | ACTIVE |
| Temp Rating | -100.0 FAHRENHEIT AND 350.0 FAHRENHEIT DEGF |
| Cross-Sectional Height | 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN |
| Hardness Rating | 70.0 SHORE DUROMETER A NOMINAL |
| Elongation Percentage | 125 MAXIMUM |
| Center Hole Diameter | 2.965 INCHES MINIMUM AND 3.013 INCHES MAXIMUM IN |
| Material | RUBBER FLUOROSILICONE CLASS FQ |
| 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 |
|---|---|
| PRP041-11647 | Parker Hannifin Corporation Div O-Ring Division (USA) |
| 041-11647 | Parker Hannifin Corporation Div O-Ring Division (USA) |
| Reference | Meaning |
|---|---|
| MILR25988 | 5/9 Secondary reference U.S. Government activity |
| A-041TH1047 | 5/2 Secondary reference U.S. Government activity |
| M25988/1-041ES | 5/9 Secondary reference Eriks B.v. |
| MIL-DTL-25988/1 | 4/1 Identification reference U.S. Government activity |
| M25988/1-041 | 2/2 Government specification standardization U.S. Government activity |
| 2-041 L677-70 | 5/9 Secondary reference Parker-Hannifin Corp Div O-Ring Division |
| 2-041 L1120-70 | 5/1 Secondary reference Parker-Hannifin Corp Div O-Ring Division |
| 2-041 L677-7 | 5/9 Secondary reference U.S. Government activity |
NSN 5331-00-559-7520 is a O-Ring, manufactured by Parker Hannifin Corporation Div O-Ring Division, classified under FSC 5331, O-ring. Status: active.
NSN 5331-00-559-7520 has 2 manufacturer part numbers on file: PRP041-11647 (Parker Hannifin Corporation Div O-Ring Division), 041-11647 (Parker Hannifin Corporation Div O-Ring Division).
Key specifications for PRP041-11647: Temp Rating: -100.0 FAHRENHEIT AND 350.0 FAHRENHEIT DEGF; Cross-Sectional Height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN; Hardness Rating: 70.0 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.