The Loudspeaker,permanent Magnet, cataloged under National Stock Number 5965-00-978-8535, 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 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems. Government technical data includes 15 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5965-00-978-8535 |
| Primary Part Number | 271-0164-020 |
| Item Name | Loudspeaker,permanent Magnet |
| FSC / FSG | 5965 / 59 — Headsets, Handsets, Microphones and Speakers |
| Manufacturer | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems |
| Status | ACTIVE |
| Mounting Facility Quantity | 4 |
| Terminal Quantity | 2 |
| Usage Design | UNDERWATER |
| Terminal Type | TAB, SOLDER LUG |
| Transducer Type | CONE |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 2.375 INCHES NOMINAL IN |
| Mounting Method | UNTHREADED HOLE(S) |
| Frequency Response Range in Hertz | +400.0 TO 6000.0 |
| Style Designator | SQUARE |
| Mounting Hole Diameter | 0.180 INCHES NOMINAL IN |
| Transducer Diameter | 2.75 INCHES NOMINAL IN |
| Impedance Rating in Ohms | 8.0 VOICE COIL NOMINAL |
| Center to Center Distance Between Mounting Facilities Parallel to Width | 2.375 INCHES NOMINAL IN |
| Power Rating | 2.00 WATTS NORMAL |
| Installation Design | PORTABLE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Hazardous per DLA record (HMIC Y) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 271-0164-020 PRIMARY | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA) |
| Reference | Meaning |
|---|---|
| C3BR0K | 5/9 Secondary reference U.S. Government activity |
| SM-D-454812 | 3/2 Design control — primary reference U.S. Government activity |
| SM-D-454812 | 5/9 Secondary reference Rca Corp Government and Commercial Systems Commercial Commications Systems Div |
| 5931501 | 5/9 Secondary reference Tadiran Ltd |
NSN 5965-00-978-8535 is a Loudspeaker,permanent Magnet, manufactured by Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems, classified under FSC 5965, Headsets, Handsets, Microphones and Speakers. Status: active.
NSN 5965-00-978-8535 has 1 manufacturer part number on file: 271-0164-020 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems).
1 possible match (shared part number, not a government interchangeability claim): 5965-01-058-9785. Verify interchangeability with system specifications before substitution.
Key specifications for 271-0164-020: Mounting Facility Quantity: 4; Terminal Quantity: 2; Usage Design: UNDERWATER; Terminal Type: TAB, SOLDER LUG. 15 specifications are documented in the U.S. Government catalog.
Hazardous per DLA record (HMIC Y). 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.