The Handset, cataloged under National Stock Number 5965-00-642-8997, is classified within Federal Supply Class 5965 (Headsets, Handsets, Microphones and Speakers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Telephone Company of America Incorporated. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5965-00-642-8997 |
| Primary Part Number | SC-D-22544-GP1 |
| Item Name | Handset |
| FSC / FSG | 5965 / 59 — Headsets, Handsets, Microphones and Speakers |
| Manufacturer | Telephone Company of America Incorporated |
| Status | ACTIVE |
| Earphone DC Resistance Rating | 25.0 OHMS NOMINAL |
| Microphone Element Type | CARBON |
| Individual Connector Termination Type | LUG |
| Operating Current Rating | 60.0 MILLIAMPERES NOMINAL |
| Conductor Quantity | 3 |
| DC Resistance Rating in Ohms | 28.0 NOMINAL |
| Power Source | BATTERY |
| Earphone Element Type | MAGNETIC |
| Earphone Impedance Rating | 128.0 OHMS NOMINAL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| SC-D-22544-GP1 | Telephone Company of America Incorporated (USA) |
| A9642 | Autodyne Manufacturing Co Inc (USA) |
| Reference | Meaning |
|---|---|
| SC-D-22544-GP1 | 3/2 Design control — primary reference U.S. Government activity |
| MIL-H-13253/8 | 5/9 Secondary reference U.S. Government activity |
| SC-D-22544 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| M13253/8-01 | 5/9 Secondary reference U.S. Government activity |
| H-121/U | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 5965-00-642-8997 is a Handset, manufactured by Telephone Company of America Incorporated, classified under FSC 5965, Headsets, Handsets, Microphones and Speakers. Status: active.
NSN 5965-00-642-8997 has 2 manufacturer part numbers on file: SC-D-22544-GP1 (Telephone Company of America Incorporated), A9642 (Autodyne Manufacturing Co Inc).
Key specifications for SC-D-22544-GP1: Earphone DC Resistance Rating: 25.0 OHMS NOMINAL; Microphone Element Type: CARBON; Individual Connector Termination Type: LUG; Operating Current Rating: 60.0 MILLIAMPERES NOMINAL. 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.