The Earphone, cataloged under National Stock Number 5965-00-669-8940, is classified within Federal Supply Class 5965 (Headsets, Handsets, Microphones and Speakers) of the Electrical and Electronic Equipment Components group. Government technical data includes 15 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5965-00-669-8940 |
| Item Name | Earphone |
| FSC / FSG | 5965 / 59 — Headsets, Handsets, Microphones and Speakers |
| Status | ACTIVE |
| Terminal Quantity | 2 |
| Acoustic Sensitivity Reference Rating | NOT RATED |
| Body Style | EARPHONE, RECTANGULAR |
| Terminal Type | SCREW |
| Impedance Matching Device Type | TRANSFORMER |
| Input Terminal Type | SCREW SIGNAL |
| Mounting Method | DIAMETRICALLY OPPOSED HOLES IN OUTSIDE PERIPHERY OF CASE EARPHONE |
| Impedance Rating in Ohms | 128.0 MINIMUM AND 4000.0 MAXIMUM |
| Terminal Location | EXTERNAL |
| Earphone Overall Height | 2.875 INCHES NOMINAL IN |
| Earphone Overall Depth | 1.875 INCHES NOMINAL IN |
| Earphone Element Type | MAGNETIC |
| Furnished Items | EAR CUSHION |
| Shell Material | STEEL EARPHONE |
| Earphone Overall Width | 4.500 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 133B1096A | 5/9 Secondary reference National Scientific Products Co |
| MIL-H-12487 | 4/1 Identification reference U.S. Government activity |
| MX-240/U | 5/2 Secondary reference U.S. Government activity |
| SC-D-14632 | 3/1 Design control — primary reference U.S. Government activity |
| GA47 | 5/9 Secondary reference Permoflux Div of Dx Radio and Tv Service |
NSN 5965-00-669-8940 is a Earphone, classified under FSC 5965, Headsets, Handsets, Microphones and Speakers. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5965-00-669-9020. Verify interchangeability with system specifications before substitution.
Key specifications for 5965-00-669-8940: Terminal Quantity: 2; Acoustic Sensitivity Reference Rating: NOT RATED; Body Style: EARPHONE, RECTANGULAR; Terminal Type: SCREW. 15 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.