The Earphone, cataloged under National Stock Number 5965-00-128-8758, 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 Autodyne Manufacturing Co Inc. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5965-00-128-8758 |
| Primary Part Number | SC-D-7724 |
| Item Name | Earphone |
| FSC / FSG | 5965 / 59 — Headsets, Handsets, Microphones and Speakers |
| Manufacturer | Autodyne Manufacturing Co Inc |
| Status | ACTIVE |
| Terminal Quantity | 2 |
| Body Style | EARPHONE, CIRCULAR |
| Terminal Type | SCREW |
| Input Terminal Type | SCREW SIGNAL |
| Overall Diameter | 0.900 INCHES NOMINAL IN |
| Mounting Method | RETAINER RING EARPHONE |
| Impedance Rating in Ohms | 125.0 NOMINAL |
| Terminal Location | EXTERNAL |
| Earphone Overall Depth | 0.688 INCHES NOMINAL IN |
| Earphone Element Type | MAGNETIC |
| Shell Material | PLASTIC EARPHONE |
| 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-7724 | Autodyne Manufacturing Co Inc (USA) |
| Reference | Meaning |
|---|---|
| R30U | 5/2 Secondary reference U.S. Government activity |
| SC-D-7724 | 3/2 Design control — primary reference U.S. Government activity |
| HPA7009 | 5/9 Secondary reference U.S. Government activity |
NSN 5965-00-128-8758 is a Earphone, manufactured by Autodyne Manufacturing Co Inc, classified under FSC 5965, Headsets, Handsets, Microphones and Speakers. Status: active.
NSN 5965-00-128-8758 has 1 manufacturer part number on file: SC-D-7724 (Autodyne Manufacturing Co Inc).
Key specifications for SC-D-7724: Terminal Quantity: 2; Body Style: EARPHONE, CIRCULAR; Terminal Type: SCREW; Input Terminal Type: SCREW SIGNAL. 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.
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.