The Test Set,telephone, cataloged under National Stock Number 6625-00-545-7973, is classified within Federal Supply Class 6625 (Electrical and Electronic Properties Measuring and Testing Instruments) of the Instruments and Laboratory Equipment group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6625-00-545-7973 |
| Item Name | Test Set,telephone |
| FSC / FSG | 6625 / 66 — Electrical and Electronic Properties Measuring and Testing Instruments |
| Status | ACTIVE |
| Length | 21.000 INCHES NOMINAL IN |
| DC Voltage Rating | 12.0 VOLTS NOMINAL SECOND OPERATING POWER RQMT |
| DC Voltage Rating | 135.0 VOLTS NOMINAL FOURTH OPERATING POWER RQMT |
| DC Voltage Rating | 24.0 VOLTS NOMINAL THIRD OPERATING POWER RQMT |
| DC Voltage Rating | 3.0 VOLTS NOMINAL FIRST OPERATING POWER RQMT |
| Height | 10.100 INCHES NOMINAL IN |
| Enclosure Feature | SINGLE ITEM W/CARRYING CASE |
| Width | 14.400 INCHES NOMINAL IN |
| Material | STEEL CARRYING CASE |
| Test Type for Which Designed | MEASURES ELECTRICAL CHARACTERISTIC OF FIELD PHONES,HANDSETS,HEAD AND CHEST SETS,MICROPHONES,RECEIVERS,GENERATORS,RINGERS AND TELEPHONE DIALS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| TS903G | 3/2 Design control — primary reference U.S. Government activity |
| I142 | 5/2 Secondary reference U.S. Government activity |
NSN 6625-00-545-7973 is a Test Set,telephone, classified under FSC 6625, Electrical and Electronic Properties Measuring and Testing Instruments. Status: active.
Key specifications for 6625-00-545-7973: Length: 21.000 INCHES NOMINAL IN; DC Voltage Rating: 12.0 VOLTS NOMINAL SECOND OPERATING POWER RQMT; DC Voltage Rating: 135.0 VOLTS NOMINAL FOURTH OPERATING POWER RQMT; DC Voltage Rating: 24.0 VOLTS NOMINAL THIRD OPERATING POWER RQMT. 10 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.