The Earphone, cataloged under National Stock Number 5965-00-296-2160, 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 Telephonics Corp. Government technical data includes 13 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5965-00-296-2160 |
| Primary Part Number | TH37A1 |
| Item Name | Earphone |
| FSC / FSG | 5965 / 59 — Headsets, Handsets, Microphones and Speakers |
| Manufacturer | Telephonics Corp |
| Status | ACTIVE |
| Accommodated Helmet Type | FLIGHT |
| Terminal Quantity | 2 |
| Acoustic Sensitivity Reference Rating | NOT RATED |
| Body Style | EARPHONE, CIRCULAR |
| Terminal Type | SCREW |
| Input Terminal Type | PLUG SIGNAL |
| Overall Diameter | 2.031 INCHES NOMINAL IN |
| Impedance Rating in Ohms | 5000.0 NOMINAL |
| Terminal Location | INTERNAL |
| Earphone Overall Depth | 0.875 INCHES NOMINAL IN |
| Earphone Element Type | MAGNETIC |
| Furnished Items | EAR CLIP |
| 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 |
|---|---|
| TH37A1 | Telephonics Corp (USA) |
| Reference | Meaning |
|---|---|
| H2269 | 3/9 Design control — primary reference Dowty Rfl Industries Inc |
| 491898 | 5/2 Secondary reference U.S. Government activity |
NSN 5965-00-296-2160 is a Earphone, manufactured by Telephonics Corp, classified under FSC 5965, Headsets, Handsets, Microphones and Speakers. Status: active.
NSN 5965-00-296-2160 has 1 manufacturer part number on file: TH37A1 (Telephonics Corp).
Key specifications for TH37A1: Accommodated Helmet Type: FLIGHT; Terminal Quantity: 2; Acoustic Sensitivity Reference Rating: NOT RATED; Body Style: EARPHONE, CIRCULAR. 13 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.