The Telephone,secure Unit, cataloged under National Stock Number 5810-01-331-3101, is classified within Federal Supply Class 5810 (Communications Security Equipment and Components) of the Communication, Detection, and Coherent Radiation Equipment group. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Telephone,secure Unit |
| FSC / FSG | 5810 — Communications Security Equipment and Components (FSG 58) |
| Parameter | Value |
|---|---|
| NSN | 5810-01-331-3101 |
| Item Name | Telephone,secure Unit |
| FSC / FSG | 5810 / 58 — Communications Security Equipment and Components |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Reference | Meaning |
|---|---|
| 5DGT2500X | 5/9 Secondary reference Freescale Semiconductor, Inc. |
| STUA21 UNIVERSAL SINGLE LINE | 3/2 Design control — primary reference U.S. Government activity |
NSN 5810-01-331-3101 is a Telephone,secure Unit, classified under FSC 5810, Communications Security Equipment and Components. Status: active.
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 5810-01-331-3101 has DEMIL Code D. 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.