The Earphone, cataloged under National Stock Number 5965-00-129-3170, is classified within Federal Supply Class 5965 (Headsets, Handsets, Microphones and Speakers) of the Electrical and Electronic Equipment Components group. Government technical data includes 11 specifications, cited from the U.S. Government catalog. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5965-00-129-3170 |
| Item Name | Earphone |
| FSC / FSG | 5965 / 59 — Headsets, Handsets, Microphones and Speakers |
| Status | ACTIVE |
| Terminal Quantity | 2 |
| Body Style | EARPHONE, CIRCULAR |
| Terminal Type | SETSCREW |
| Overall Diameter | 0.900 INCHES NOMINAL IN |
| Connector Manufacturer Part Number | FGA-538-1 |
| Impedance Rating in Ohms | 128.0 NOMINAL |
| Terminal Location | INTERNAL |
| Connector Manufacturer Code | 55933 |
| 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 |
| Reference | Meaning |
|---|---|
| R30D | 5/9 Secondary reference Lucent Technologies Inc Dba Federal Marketing Group |
| R30D | C/1 Advisory reference — outside the item-of-supply concept Lucent Technologies Inc Corporate Headquarters |
| R30D | 5/2 Secondary reference U.S. Government activity |
| R30B | 5/2 Secondary reference U.S. Government activity |
| R30D | 5/9 Secondary reference At and T Corp |
| R30D | 3/9 Design control — primary reference American Telephone and Telegraph Co |
NSN 5965-00-129-3170 is a Earphone, classified under FSC 5965, Headsets, Handsets, Microphones and Speakers. Status: active.
3 possible matches (shared part number, not a government interchangeability claim): 5990-00-344-2062, 4310-01-112-3584, 5999-01-279-9212. Verify interchangeability with system specifications before substitution.
Key specifications for 5965-00-129-3170: Terminal Quantity: 2; Body Style: EARPHONE, CIRCULAR; Terminal Type: SETSCREW; Overall Diameter: 0.900 INCHES NOMINAL IN. 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.