The Trainer,telegraphic Code, cataloged under National Stock Number 6940-00-243-1972, is classified within Federal Supply Class 6940 (Communication Training Devices) of the Training Aids and Devices group. Government technical data includes 15 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 6940-00-243-1972 |
| Item Name | Trainer,telegraphic Code |
| FSC / FSG | 6940 / 69 — Communication Training Devices |
| Status | ACTIVE |
| Component Name | AUDIO OSCILLATOR,AMPLIFIER AND CONNECTING CORDAGE; LOUDSPEAKER; SIGNAL KEY |
| Component Quantity | 3 |
| Direct Current Usage | OPTIONAL |
| Phase | SINGLE |
| Frequency in Hertz | 60.0 |
| Component Identifying Number | TYPE NO. 8-4185; MODEL NO. 22M; TYPE NO. J-37 |
| Training Equipment Coverage | UNLIMITED |
| Alternating Current Voltage Rating in Volts | 115.0 OR 230.0 |
| Alternating Current Usage | OPTIONAL |
| Power Source | AC OR DC |
| Component Controlling Agency | TARTAK CO; SIG; SIG |
| Training Phase | OPERATION TRAINING,TELEPHONE CODE; TRANSMISSION AND RECEPTION |
| Direct Current Voltage Rating in Volts | 6.0 OR 12.0 OR 24.0 OR 115.0 |
| Student Position Quantity | 10 |
| Case | PROVIDED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 71-3132 | 5/2 Secondary reference U.S. Government activity |
| ANGSCT1ANDGSCT1A | 3/2 Design control — primary reference U.S. Government activity |
NSN 6940-00-243-1972 is a Trainer,telegraphic Code, classified under FSC 6940, Communication Training Devices. Status: active.
Key specifications for 6940-00-243-1972: Component Name: AUDIO OSCILLATOR,AMPLIFIER AND CONNECTING CORDAGE; LOUDSPEAKER; SIGNAL KEY; Component Quantity: 3; Direct Current Usage: OPTIONAL; Phase: SINGLE. 15 specifications are documented in the U.S. Government catalog.
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 6940-00-243-1972 has DEMIL Code Q. 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.