The Loudspeaker,permanent Magnet, cataloged under National Stock Number 5965-00-083-6486, 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 Quam Nichols Co. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5965-00-083-6486 |
| Primary Part Number | 4C3OT |
| Item Name | Loudspeaker,permanent Magnet |
| FSC / FSG | 5965 / 59 — Headsets, Handsets, Microphones and Speakers |
| Manufacturer | Quam Nichols Co |
| Status | ACTIVE |
| Mounting Facility Quantity | 4 |
| Terminal Quantity | 2 |
| Usage Design | INDOOR |
| Terminal Type | TAB, SOLDER LUG |
| Transducer Type | CONE |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 3.312 INCHES NOMINAL IN |
| Mounting Method | UNTHREADED HOLE(S) |
| Style Designator | SQUARE |
| Transducer Diameter | 4.000 INCHES NOMINAL IN |
| Impedance Rating in Ohms | 3.2 VOICE COIL NOMINAL |
| Center to Center Distance Between Mounting Facilities Parallel to Width | 3.312 INCHES NOMINAL IN |
| Power Rating | 2.50 WATTS NORMAL |
| Installation Design | NONPORTABLE |
| 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 |
|---|---|
| 4C3OT PRIMARY | Quam Nichols Co (USA) |
| Reference | Meaning |
|---|---|
| 4A05-0T | 5/9 Secondary reference Quam Nichols Co |
| 4A05 | 5/9 Secondary reference Quam Nichols Co |
NSN 5965-00-083-6486 is a Loudspeaker,permanent Magnet, manufactured by Quam Nichols Co, classified under FSC 5965, Headsets, Handsets, Microphones and Speakers. Status: active.
NSN 5965-00-083-6486 has 1 manufacturer part number on file: 4C3OT (Quam Nichols Co).
Key specifications for 4C3OT: Mounting Facility Quantity: 4; Terminal Quantity: 2; Usage Design: INDOOR; Terminal Type: TAB, SOLDER LUG. 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.