The Disk Drive Unit, cataloged under National Stock Number 7025-01-540-5225, 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 Compaq Computer Corp.. Government technical data includes 7 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. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 7025-01-540-5225 |
| Primary Part Number | 383975-B21 |
| Item Name | Disk Drive Unit |
| FSC / FSG | 7025 / 70 — Information Technology Input/output and Storage Devices |
| Manufacturer | Compaq Computer Corp. |
| Status | ACTIVE |
| Interface Type | IDE |
| Design Type | COMPACT DISK - WRITE ONCE/READ MANY |
| Drive Quantity | 1 |
| Drive Size | 5.25 |
| Unpackaged Unit Weight | 2.000 POUNDS LBS |
| Data Storage Capacity | 2.00 MEGABYTES |
| Unit Design | INTERNAL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Shelf Life Code | 0 |
| Criticality Code | X |
| Unit of Issue | EA |
| Acquisition advice code | J |
| Part Number | Manufacturer |
|---|---|
| 383975-B21 PRIMARY | Compaq Computer Corp. (USA) |
NSN 7025-01-540-5225 is a Disk Drive Unit, manufactured by Compaq Computer Corp., classified under FSC 7025, Information Technology Input/output and Storage Devices. Status: active.
NSN 7025-01-540-5225 has 1 manufacturer part number on file: 383975-B21 (Compaq Computer Corp.).
1 possible match (shared part number, not a government interchangeability claim): 7025-01-571-3986. Verify interchangeability with system specifications before substitution.
Key specifications for 383975-B21: Overall Height: 0.500 INCHES NOMINAL IN; Interface Type: IDE; Design Type: COMPACT DISK - WRITE ONCE/READ MANY; Drive Quantity: 1. 7 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.