The O-Ring, cataloged under National Stock Number 5331-01-526-7716, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Parker-Hannifin Corporation Dba Pneutronics Div Corporate Headquarters. Government technical data includes 4 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-526-7716 |
| Primary Part Number | N0525-60 2-265 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Parker-Hannifin Corporation Dba Pneutronics Div Corporate Headquarters |
| Status | ACTIVE |
| Cross-Sectional Height | 0.125 INCHES NOMINAL IN |
| Color | BLUE |
| Center Hole Diameter | 7.750 INCHES NOMINAL IN |
| Material | RUBBER BUTADIENE NITRILE |
| 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 |
|---|---|
| N0505-60 2-265 | Parker-Hannifin Corp Div O-Ring Division (USA) |
| N0525-60 2-265 PRIMARY | Parker-Hannifin Corporation Dba Pneutronics Div Corporate Headquarters (USA) |
| Reference | Meaning |
|---|---|
| 2-265N105-6 | 5/9 Secondary reference Parker-Hannifin Corporation Dba Pneutronics Div Corporate Headquarters |
| 2-265N0525-60 | 3/9 Design control — primary reference Parker-Hannifin Corporation Dba Pneutronics Div Corporate Headquarters |
NSN 5331-01-526-7716 is a O-Ring, manufactured by Parker-Hannifin Corporation Dba Pneutronics Div Corporate Headquarters, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-526-7716 has 2 manufacturer part numbers on file: N0505-60 2-265 (Parker-Hannifin Corp Div O-Ring Division), N0525-60 2-265 (Parker-Hannifin Corporation Dba Pneutronics Div Corporate Headquarters).
Key specifications for N0525-60 2-265: Cross-Sectional Height: 0.125 INCHES NOMINAL IN; Color: BLUE; Special Features: 60 DUROMETER RATING; Center Hole Diameter: 7.750 INCHES NOMINAL IN. 4 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.