The Disk Drive Unit, cataloged under National Stock Number 7025-01-312-9136, 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 Cdr Systems Inc. Government technical data includes 2 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 7025-01-312-9136 |
| Primary Part Number | CDR77 |
| Item Name | Disk Drive Unit |
| FSC / FSG | 7025 / 70 — Information Technology Input/output and Storage Devices |
| Manufacturer | Cdr Systems Inc |
| Status | ACTIVE |
| Voltage in Volts and Current Type | 120.0 AC |
| Unpackaged Unit Weight | 25.250 POUNDS LBS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| 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 |
|---|---|
| CDR77 | Cdr Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| CDR-77 | 5/9 Secondary reference Cdr Systems Inc Controlled Data Recording |
| Z-77-B | 3/9 Design control — primary reference Zenith Data Systems Corp Federal Systems Group |
| ECWIN-CHS | 5/9 Secondary reference U C I Supply Co Inc |
NSN 7025-01-312-9136 is a Disk Drive Unit, manufactured by Cdr Systems Inc, classified under FSC 7025, Information Technology Input/output and Storage Devices. Status: active.
NSN 7025-01-312-9136 has 1 manufacturer part number on file: CDR77 (Cdr Systems Inc).
Key specifications for CDR77: Voltage in Volts and Current Type: 120.0 AC; Unpackaged Unit Weight: 25.250 POUNDS LBS; Special Features: 50/60 HZ, 75 WATTS OR 240 V AC; 50/60 HZ, 75 WATTS; 0.0 TO 40.0 DEG. C OPERATING TEMP; 13.250 IN. W; 13.250 IN. D; 6.125 IN. H V. 2 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 7025-01-312-9136 has DEMIL Code Q. 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.