The Test Set,crystal Unit,quartz, cataloged under National Stock Number 6625-00-668-9484, 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 13 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 6625-00-668-9484 |
| Item Name | Test Set,crystal Unit,quartz |
| FSC / FSG | 6625 / 66 — Electrical and Electronic Properties Measuring and Testing Instruments |
| Status | ACTIVE |
| Phase | SINGLE FIRST OPERATING POWER RQMT |
| Length | 25.000 INCHES NOMINAL IN |
| AC Voltage Rating | 110.0 VOLTS MINIMUM AND 120.0 VOLTS MAXIMUM FIRST OPERATING POWER RQMT |
| Major Components | STD OSCILLATOR;CASE |
| Accessory Identifying Number | -S221/TSM TYPE NO. AND FCY-231/TSM-1 TYPE NO. |
| Height | 10.000 INCHES NOMINAL IN |
| Accessory Controlling Agency | JCENS AND JCENS |
| Enclosure Feature | SINGLE ITEM W/CARRYING CASE |
| Frequency Rating | 50.0 HERTZ MINIMUM AND 1000.0 HERTZ MAXIMUM FIRST OPERATING POWER RQMT |
| Width | 12.000 INCHES NOMINAL IN |
| Material | WOOD CARRYING CASE |
| Accessory Component Quantity | 2 |
| Test Type for Which Designed | TESTS ACTIVITY AND FREQUENCY OF QUARTZ CRYSTALS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Shelf Life Code | 0 |
| Criticality Code | X |
| Unit of Issue | EA |
| Acquisition advice code | JS |
| Reference | Meaning |
|---|---|
| ANTSM2 | 3/2 Design control — primary reference U.S. Government activity |
NSN 6625-00-668-9484 is a Test Set,crystal Unit,quartz, classified under FSC 6625, Electrical and Electronic Properties Measuring and Testing Instruments. Status: active.
Key specifications for 6625-00-668-9484: Phase: SINGLE FIRST OPERATING POWER RQMT; Length: 25.000 INCHES NOMINAL IN; AC Voltage Rating: 110.0 VOLTS MINIMUM AND 120.0 VOLTS MAXIMUM FIRST OPERATING POWER RQMT; Major Components: STD OSCILLATOR;CASE. 13 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.