The Disk Drive Unit, cataloged under National Stock Number 7025-01-356-5613, is classified within Federal Supply Class 7025 (Information Technology Input/output and Storage Devices) of the General Purpose ADP Equipment group. The manufacturer of record is Data General Corp Ms-1d. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 7025-01-356-5613 |
| Primary Part Number | B5490GD |
| Item Name | Disk Drive Unit |
| FSC / FSG | 7025 / 70 — Information Technology Input/output and Storage Devices |
| Manufacturer | Data General Corp Ms-1d |
| Status | ACTIVE |
| Access Time in Milliseconds | 28.0 |
| Design Type | HARD DISK |
| Power Source | EXTERNAL |
| Drive Quantity | 1 |
| Drive Size | 5.25 |
| Drive Height | FULL |
| Unpackaged Unit Weight | 6.000 POUNDS LBS |
| Operating Temp Range | +10.0 TO 46.0 CELSIUS DEGC |
| Data Storage Capacity | 85.000 MEGABYTES |
| Unit Design | INTERNAL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Shelf Life Code | 0 |
| Criticality Code | X |
| Unit of Issue | EA |
| Acquisition advice code | VT |
| Weight | 10.1600 lbs |
| Cube | 1.1667 cu ft |
| Part Number | Manufacturer |
|---|---|
| B5490GD | Data General Corp Ms-1d (USA) |
| Reference | Meaning |
|---|---|
| 1325DG | 3/9 Design control — primary reference Micropolis Corp |
| 900527-02-9A | 5/9 Secondary reference Micropolis Corp |
NSN 7025-01-356-5613 is a Disk Drive Unit, manufactured by Data General Corp Ms-1d, classified under FSC 7025, Information Technology Input/output and Storage Devices. Status: active.
NSN 7025-01-356-5613 has 1 manufacturer part number on file: B5490GD (Data General Corp Ms-1d).
Key specifications for B5490GD: Access Time in Milliseconds: 28.0; Overall Height: 3.250 INCHES NOMINAL IN; Design Type: HARD DISK; Power Source: EXTERNAL. 10 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.
NSN 7025-01-356-5613 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
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.