The Test Set,relay, cataloged under National Stock Number 6625-00-643-0109, 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 9 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6625-00-643-0109 |
| Item Name | Test Set,relay |
| FSC / FSG | 6625 / 66 — Electrical and Electronic Properties Measuring and Testing Instruments |
| Status | ACTIVE |
| Length | 23.000 INCHES NOMINAL IN |
| DC Voltage Rating | 115.0 VOLTS MINIMUM AND 130.0 VOLTS MAXIMUM FIRST OPERATING POWER RQMT |
| Reference Data and Literature | 33A1-12-25 |
| Height | 11.300 INCHES NOMINAL IN |
| Functional Description | USED FOR LINING UP TELEGRAPH CIRCUITS, ADJUSTING AND TESTING RELAYS |
| Enclosure Feature | SINGLE ITEM W/HOUSING |
| Width | 12.700 INCHES NOMINAL IN |
| Material | WOOD CARRYING CASE |
| Test Type for Which Designed | ADJUSTING AND TESTING RELAYS |
| 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 |
|---|---|
| 1-193C | 5/2 Secondary reference U.S. Government activity |
| 1-193C | 3/2 Design control — primary reference U.S. Government activity |
| I193C | 5/2 Secondary reference U.S. Government activity |
NSN 6625-00-643-0109 is a Test Set,relay, classified under FSC 6625, Electrical and Electronic Properties Measuring and Testing Instruments. Status: active.
Key specifications for 6625-00-643-0109: Length: 23.000 INCHES NOMINAL IN; DC Voltage Rating: 115.0 VOLTS MINIMUM AND 130.0 VOLTS MAXIMUM FIRST OPERATING POWER RQMT; Reference Data and Literature: 33A1-12-25; Height: 11.300 INCHES NOMINAL IN. 9 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.