The Generator,signal, cataloged under National Stock Number 6625-00-643-1577, 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 11 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6625-00-643-1577 |
| Item Name | Generator,signal |
| FSC / FSG | 6625 / 66 — Electrical and Electronic Properties Measuring and Testing Instruments |
| Status | ACTIVE |
| Frequency Band Quantity | 1 |
| Current Type | DC |
| Case Surface Treatment | ENAMEL |
| Modulation Type | PULSE |
| Modulated Frequency Rating | 800.0 HERTZ NOMINAL |
| Calibration Accuracy Rating | PORM 150 MHZ ACCURACY ON LOW FREQUENCY BAND AND PORM 2 PCT ON HIGH FREQUENCY BAND MHz |
| Modulator Location | INTERNAL |
| Output Impedance Rating | 50.0 OHMS NOMINAL |
| Frequency Range Rating | +3.000 TO 11.000 GIGAHERTZ |
| Material | ALUMINUM ALLOY CASE |
| Voltage Rating | 3.0 VOLTS NOMINAL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| TS508UP | 3/2 Design control — primary reference U.S. Government activity |
| 1180 | 5/2 Secondary reference U.S. Government activity |
NSN 6625-00-643-1577 is a Generator,signal, classified under FSC 6625, Electrical and Electronic Properties Measuring and Testing Instruments. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 6625-01-433-5633. Verify interchangeability with system specifications before substitution.
Key specifications for 6625-00-643-1577: Overall Height: 6.500 INCHES NOMINAL IN; Frequency Band Quantity: 1; Current Type: DC; Case Surface Treatment: ENAMEL. 11 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.
NSN 6625-00-643-1577 has DEMIL Code B. 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.