The Headset,electrical, cataloged under National Stock Number 5965-01-028-0325, 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 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp. Government technical data includes 22 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5965-01-028-0325 |
| Primary Part Number | 105889-690 |
| Item Name | Headset,electrical |
| FSC / FSG | 5965 / 59 — Headsets, Handsets, Microphones and Speakers |
| Manufacturer | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp |
| Status | ACTIVE |
| FSC Application Data | HEADSETS,HANDSETS,MICROPHONES AND SPEAKERS |
| Terminal Quantity | 2 |
| Acoustic Sensitivity Reference Rating | NOT RATED |
| Body Style | HEADSET, COVERED |
| Terminal Type | TAB, SOLDER LUG |
| Input Terminal Type | PHONE TIP |
| Mounting Method | DIAMETRICALLY OPPOSED HOLES IN OUTSIDE PERIPHERY OF CASE EARPHONE |
| Frequency Response Range in Hertz | +20.0 TO 20000.0 |
| Headset Overall Width | 5.500 INCHES NOMINAL IN |
| Impedance Rating in Ohms | 60.0 NOMINAL |
| Terminal Location | INTERNAL |
| Earphone Quantity | 2 |
| Headset Connecting Cord Termination Location | AT CENTER CONNECTION |
| Headset Overall Depth | 3.500 INCHES NOMINAL IN |
| Headset Cord Length | 120.0 INCHES NOMINAL IN |
| Output Sensitivity Rating in Decibels | 94.0 |
| Earphone Element Type | DYNAMIC |
| Earphone Interconnection Arrangement | PARALLEL |
| Headband Type | ADJUSTABLE SINGLE BAND |
| Furnished Items | EAR CUSHION |
| Headset Overall Height | 7.500 INCHES NOMINAL IN |
| 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 |
|---|---|
| 105889-690 PRIMARY | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA) |
| HD 320 | Sennheiser Electronic Gmbh & Co. Kg (DEU) |
| D450II | Dcm Soundex Inc (USA) |
| Reference | Meaning |
|---|---|
| HD 450 II | 5/9 Secondary reference Sennheiser Electronic Gmbh & Co. Kg |
| HD 414 | 5/9 Secondary reference Sennheiser Electronic Gmbh & Co. Kg |
| HD414 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| HD 450 | 5/9 Secondary reference Sennheiser Electronic Gmbh & Co. Kg |
| 105889-690 | 3/9 Design control — primary reference Litton Systems Inc. Div Navigation Systems Division |
NSN 5965-01-028-0325 is a Headset,electrical, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp, classified under FSC 5965, Headsets, Handsets, Microphones and Speakers. Status: active.
NSN 5965-01-028-0325 has 3 manufacturer part numbers on file: 105889-690 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp), HD 320 (Sennheiser Electronic Gmbh & Co. Kg), D450II (Dcm Soundex Inc).
1 possible match (shared part number, not a government interchangeability claim): 6625-01-588-2216. Verify interchangeability with system specifications before substitution.
Key specifications for 105889-690: FSC Application Data: HEADSETS,HANDSETS,MICROPHONES AND SPEAKERS; Terminal Quantity: 2; Acoustic Sensitivity Reference Rating: NOT RATED; Body Style: HEADSET, COVERED. 22 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.