The O-Ring, cataloged under National Stock Number 5331-00-191-3569, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Parco, Llc. Government technical data includes 3 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-00-191-3569 |
| Primary Part Number | S9412-523 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Parco, Llc |
| Status | ACTIVE |
| Cross-Sectional Height | 0.065 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN |
| Center Hole Diameter | 0.589 INCHES MINIMUM AND 0.607 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 |
|---|---|
| S9412-523 | Parco, Llc (USA) |
| S9412-523 | Parker-Hannifin Corp Div O-Ring Division (USA) |
| S9412-523 | Federal-Mogul Corp Government Sales Dept (USA) |
| S9412-523 | Parker Hannifin Corporation Div O-Ring Division (USA) |
| Reference | Meaning |
|---|---|
| S9412-523 | 3/2 Design control — primary reference U.S. Government activity |
| S9412-523 | 5/9 Secondary reference Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) |
| S9412-523 | 5/2 Secondary reference U.S. Government activity |
NSN 5331-00-191-3569 is a O-Ring, manufactured by Parco, Llc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-00-191-3569 has 4 manufacturer part numbers on file: S9412-523 (Parco, Llc), S9412-523 (Parker-Hannifin Corp Div O-Ring Division), S9412-523 (Federal-Mogul Corp Government Sales Dept), S9412-523 (Parker Hannifin Corporation Div O-Ring Division).
Key specifications for S9412-523: Cross-Sectional Height: 0.065 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN; Center Hole Diameter: 0.589 INCHES MINIMUM AND 0.607 INCHES MAXIMUM IN; Material: RUBBER FLUOROSILICONE CLASS FQ. 3 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.