The Microphone,dynamic, cataloged under National Stock Number 5965-00-099-0688, 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 Dcm Soundex Inc. Government technical data includes 14 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5965-00-099-0688 |
| Primary Part Number | LM90 |
| Item Name | Microphone,dynamic |
| FSC / FSG | 5965 / 59 — Headsets, Handsets, Microphones and Speakers |
| Manufacturer | Dcm Soundex Inc |
| Status | ACTIVE |
| Length | 2.250 INCHES NOMINAL IN |
| Body Style | LAVALIER |
| Mounting Method | CORD |
| Sound Pickup Directional Type | OMNIDIRECTIONAL |
| Frequency Response Range in Hertz | +80.0 TO 10000.0 |
| Extended Cable Length | 30.0 FEET NOMINAL FT |
| Diameter | 0.750 INCHES NOMINAL IN |
| Polarity Connection | NOT REQUIRED |
| Cable Shielded Conductor Quantity | 2 |
| Impedance Rating | 50.0 OHMS MINIMUM AND 250.0 OHMS MAXIMUM |
| Accessory Components | CABLE |
| Output Sensitivity Rating in Decibels | -155.0 |
| Cable Conductor Quantity | 2 |
| Electrical Connection Type | INTEGRAL CABLE |
| 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 |
|---|---|
| LM90 | Dcm Soundex Inc (USA) |
| Reference | Meaning |
|---|---|
| 649-3078 | 3/2 Design control — primary reference U.S. Government activity |
| 649B | 5/1 Secondary reference U.S. Government activity |
| US649B | 5/2 Secondary reference U.S. Government activity |
NSN 5965-00-099-0688 is a Microphone,dynamic, manufactured by Dcm Soundex Inc, classified under FSC 5965, Headsets, Handsets, Microphones and Speakers. Status: active.
NSN 5965-00-099-0688 has 1 manufacturer part number on file: LM90 (Dcm Soundex Inc).
5 possible matches (shared part number, not a government interchangeability claim): 6515-00-137-6511, 5998-00-217-0719, 5965-00-244-4324. Verify interchangeability with system specifications before substitution.
Key specifications for LM90: Length: 2.250 INCHES NOMINAL IN; Body Style: LAVALIER; Mounting Method: CORD; Sound Pickup Directional Type: OMNIDIRECTIONAL. 14 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.