The Disk Drive Unit, cataloged under National Stock Number 7025-01-476-8426, 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 Toshiba American Information Systems Inc Computer Systems Div. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 7025-01-476-8426 |
| Primary Part Number | XM-6401B |
| Item Name | Disk Drive Unit |
| FSC / FSG | 7025 / 70 — Information Technology Input/output and Storage Devices |
| Manufacturer | Toshiba American Information Systems Inc Computer Systems Div |
| Status | ACTIVE |
| Interface Type | SCSI |
| Design Type | COMPACT DISK - READ ONLY MEMORY |
| Drive Quantity | 1 |
| Drive Size | 3.50 |
| Unpackaged Unit Weight | 0.76 KILOGRAMS KG |
| Operating Temp Range | +5.0 TO 50.0 CELSIUS DEGC |
| Data Storage Capacity | 650.00 MEGABYTES |
| Unit Design | DESK TOP |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| XM-6401B PRIMARY | Toshiba American Information Systems Inc Computer Systems Div (USA) |
| TXM-6401B PRIMARY | U S Dept of Transportation Federal Aviation Administration (USA) |
| 45-910-523 | Hensoldt Uk (GBR) |
| Reference | Meaning |
|---|---|
| TXM-6401B | 5/9 Secondary reference N R Windows Inc |
| 7303660 | 5/9 Secondary reference Toshiba America Information Systems, Inc. Div Digital Products Division |
| 7084327 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 7025-01-476-8426 is a Disk Drive Unit, manufactured by Toshiba American Information Systems Inc Computer Systems Div, classified under FSC 7025, Information Technology Input/output and Storage Devices. Status: active.
NSN 7025-01-476-8426 has 3 manufacturer part numbers on file: XM-6401B (Toshiba American Information Systems Inc Computer Systems Div), TXM-6401B (U S Dept of Transportation Federal Aviation Administration), 45-910-523 (Hensoldt Uk).
1 possible match (shared part number, not a government interchangeability claim): 7025-01-509-9569. Verify interchangeability with system specifications before substitution.
Key specifications for XM-6401B: Overall Height: 1.600 INCHES NOMINAL IN; Interface Type: SCSI; Design Type: COMPACT DISK - READ ONLY MEMORY; Drive Quantity: 1. 8 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 7025-01-476-8426 has DEMIL Code B. 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.