The Microphone,dynamic, cataloged under National Stock Number 5965-01-043-5295, 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 Shure Bros 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5965-01-043-5295 |
| Primary Part Number | 577B |
| Item Name | Microphone,dynamic |
| FSC / FSG | 5965 / 59 — Headsets, Handsets, Microphones and Speakers |
| Manufacturer | Shure Bros Inc |
| Status | ACTIVE |
| Length | 3.688 INCHES NOMINAL IN |
| Body Style | HAND HELD |
| Mounting Method | BRACKET(S) |
| Sound Pickup Directional Type | OMNIDIRECTIONAL |
| Frequency Response Range in Hertz | +100.0 TO 5000.0 |
| Extended Cable Length | 6.0 FEET NOMINAL FT |
| Polarity Connection | NOT REQUIRED |
| Switch Type | PUSH |
| Height | 2.655 INCHES NOMINAL IN |
| Cable Shielded Conductor Quantity | 2 |
| Impedance Rating | 150.0 OHMS NOMINAL |
| Accessory Components | CABLE |
| Cable Conductor Quantity | 4 |
| 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 |
|---|---|
| 577B PRIMARY | Shure Bros Inc (USA) |
| Reference | Meaning |
|---|---|
| ASC1584571 | 5/9 Secondary reference Asc Pty Ltd |
| 9211069 | C/1 Advisory reference — outside the item-of-supply concept Huntington Ingalls Inc Div Newport News Shipbuilding |
| NC450D | 5/9 Secondary reference Bosch Security Systems, Inc. Dba Hy-Gain/turner Division Div Distribution |
NSN 5965-01-043-5295 is a Microphone,dynamic, manufactured by Shure Bros Inc, classified under FSC 5965, Headsets, Handsets, Microphones and Speakers. Status: active.
NSN 5965-01-043-5295 has 1 manufacturer part number on file: 577B (Shure Bros Inc).
1 possible match (shared part number, not a government interchangeability claim): 5965-01-540-0743. Verify interchangeability with system specifications before substitution.
Key specifications for 577B: Length: 3.688 INCHES NOMINAL IN; Body Style: HAND HELD; Mounting Method: BRACKET(S); 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.