The Earphone, cataloged under National Stock Number 5965-00-296-2243, 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 L3 Technologies, Inc. Div Communication Systems-East. Government technical data includes 12 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5965-00-296-2243 |
| Primary Part Number | W302821-504 |
| Item Name | Earphone |
| FSC / FSG | 5965 / 59 — Headsets, Handsets, Microphones and Speakers |
| Manufacturer | L3 Technologies, Inc. Div Communication Systems-East |
| Status | ACTIVE |
| Terminal Quantity | 2 |
| Acoustic Sensitivity Reference Rating | NOT RATED |
| Body Style | EARPHONE, CIRCULAR |
| Terminal Type | SCREW |
| Overall Diameter | 2.312 INCHES NOMINAL IN |
| Connector Manufacturer Part Number | W-302821-504 |
| Impedance Rating in Ohms | 1100.0 NOMINAL |
| Terminal Location | INTERNAL |
| Connector Manufacturer Code | 49671 |
| Earphone Overall Depth | 1.312 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 |
|---|---|
| W302821-504 PRIMARY | L3 Technologies, Inc. Div Communication Systems-East (USA) |
| Reference | Meaning |
|---|---|
| W302821-504 | 5/9 Secondary reference Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin |
NSN 5965-00-296-2243 is a Earphone, manufactured by L3 Technologies, Inc. Div Communication Systems-East, classified under FSC 5965, Headsets, Handsets, Microphones and Speakers. Status: active.
NSN 5965-00-296-2243 has 1 manufacturer part number on file: W302821-504 (L3 Technologies, Inc. Div Communication Systems-East).
Key specifications for W302821-504: Terminal Quantity: 2; Acoustic Sensitivity Reference Rating: NOT RATED; Body Style: EARPHONE, CIRCULAR; Terminal Type: SCREW. 12 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.