The Disk Drive Unit, cataloged under National Stock Number 7025-01-515-9249, 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 IBM Storage Systems. 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. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 7025-01-515-9249 |
| Primary Part Number | ST318406LW |
| Item Name | Disk Drive Unit |
| FSC / FSG | 7025 / 70 — Information Technology Input/output and Storage Devices |
| Manufacturer | IBM Storage Systems |
| Status | ACTIVE |
| Access Time in Milliseconds | 5.2 |
| Interface Type | SCSI |
| Design Type | DISK CARTRIDGE |
| Transfer Rate in Megabytes Per Second | 530.0 |
| Power Source | SELF-CONTAINED |
| Drive Quantity | 1 |
| Drive Size | 3.50 |
| Head Type and Quantity | 2 READ/WRITE |
| Data Storage Capacity | 18.35 GIGABYTES |
| Unit Design | INTERNAL |
| 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 |
|---|---|
| ST318406LW PRIMARY | IBM Storage Systems (USA) |
NSN 7025-01-515-9249 is a Disk Drive Unit, manufactured by IBM Storage Systems, classified under FSC 7025, Information Technology Input/output and Storage Devices. Status: active.
NSN 7025-01-515-9249 has 1 manufacturer part number on file: ST318406LW (IBM Storage Systems).
1 possible match (shared part number, not a government interchangeability claim): 7025-01-543-9712. Verify interchangeability with system specifications before substitution.
Key specifications for ST318406LW: Access Time in Milliseconds: 5.2; Overall Height: 1.000 INCHES NOMINAL IN; Interface Type: SCSI; Design Type: DISK CARTRIDGE. 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.
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.