The O-Ring, cataloged under National Stock Number 5331-01-641-9251, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is International Organization for Standardization (iso). Government technical data includes 3 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-641-9251 |
| Primary Part Number | ISO3601-7.65X1.78 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | International Organization for Standardization (iso) |
| Status | ACTIVE |
| Cross-Sectional Height | 1.8 MILLIMETERS NOMINAL MM |
| Center Hole Diameter | 7.6 MILLIMETERS NOMINAL MM |
| 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 |
|---|---|
| 7500058 | A/s Hydrema Export Dba A/s Hydrostar (DNK) |
| ISO3601-7.65X1.78 PRIMARY | International Organization for Standardization (iso) (CHE) |
NSN 5331-01-641-9251 is a O-Ring, manufactured by International Organization for Standardization (iso), classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-641-9251 has 2 manufacturer part numbers on file: 7500058 (A/s Hydrema Export Dba A/s Hydrostar), ISO3601-7.65X1.78 (International Organization for Standardization (iso)).
Key specifications for ISO3601-7.65X1.78: Cross-Sectional Height: 1.8 MILLIMETERS NOMINAL MM; Center Hole Diameter: 7.6 MILLIMETERS NOMINAL MM; Material: RUBBER. 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.