The Interface Unit,data Transfer, cataloged under National Stock Number 7025-01-644-6649, 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 Cisco Systems Inc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 7025-01-644-6649 |
| Primary Part Number | ISR4451-X/K9 |
| Item Name | Interface Unit,data Transfer |
| FSC / FSG | 7025 / 70 — Information Technology Input/output and Storage Devices |
| Manufacturer | Cisco Systems Inc |
| Status | ACTIVE |
| Wattage Rating in Watts | 500.0 MAXIMUM |
| Current Type | AC/DC |
| Unit Design | DESK TOP |
| 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 | JZ |
| Part Number | Manufacturer |
|---|---|
| ISR4451-X/K9 PRIMARY | Cisco Systems Inc (USA) |
| ISR4451-X/K9 | Lockheed Martin Australia Pty Ltd (AUS) |
| Reference | Meaning |
|---|---|
| 788538014 | 5/9 Secondary reference Kelsey-Hayes Co Fabco Div |
NSN 7025-01-644-6649 is a Interface Unit,data Transfer, manufactured by Cisco Systems Inc, classified under FSC 7025, Information Technology Input/output and Storage Devices. Status: active.
NSN 7025-01-644-6649 has 2 manufacturer part numbers on file: ISR4451-X/K9 (Cisco Systems Inc), ISR4451-X/K9 (Lockheed Martin Australia Pty Ltd).
3 possible matches (shared part number, not a government interchangeability claim): 5999-01-644-7275, 5999-01-644-7319, 4140-01-644-8578. Verify interchangeability with system specifications before substitution.
Key specifications for ISR4451-X/K9: Wattage Rating in Watts: 500.0 MAXIMUM; Current Type: AC/DC; Part Name Assigned by Controlling Agency: INTEGRATED SERVICES ROUTER; Unit Design: DESK TOP. 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.