The Loudspeaker,permanent Magnet, cataloged under National Stock Number 5965-01-579-6562, 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 Sojourner Communications, Inc.. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 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 | 5965-01-579-6562 |
| Primary Part Number | SPF-25 |
| Item Name | Loudspeaker,permanent Magnet |
| FSC / FSG | 5965 / 59 — Headsets, Handsets, Microphones and Speakers |
| Manufacturer | Sojourner Communications, Inc. |
| Status | ACTIVE |
| Mounting Method | SURFACE |
| Supplementary Features | 11 X 7 1/4 X 6 1/2 INCHES; 6 1/4 POUNDS LBS |
| 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 |
|---|---|
| SPF-25 PRIMARY | Sojourner Communications, Inc. (USA) |
| PHASE TECH SPF-25 PRIMARY | Sojourner Communications, Inc. (USA) |
NSN 5965-01-579-6562 is a Loudspeaker,permanent Magnet, manufactured by Sojourner Communications, Inc., classified under FSC 5965, Headsets, Handsets, Microphones and Speakers. Status: active.
NSN 5965-01-579-6562 has 2 manufacturer part numbers on file: SPF-25 (Sojourner Communications, Inc.), PHASE TECH SPF-25 (Sojourner Communications, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-618-9966. Verify interchangeability with system specifications before substitution.
Key specifications for SPF-25: Mounting Method: SURFACE; Supplementary Features: 11 X 7 1/4 X 6 1/2 INCHES; 6 1/4 POUNDS LBS; Special Features: 2 WAY; 5.25 INCH; SURFACE MOUNT; INDOOR/OUTDOOR SPEAKER; CONE IN; Part Name Assigned by Controlling Agency: LOUDSPEAKER. 2 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.