The Microphone,crystal, cataloged under National Stock Number 5965-01-551-4487, 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 Amron International Inc. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Microphone,crystal |
| FSC / FSG | 5965 — Headsets, Handsets, Microphones and Speakers (FSG 59) |
| Manufacturers | Amron International Inc (CAGE 6S753); Naval Sea Systems Command (CAGE 53711) |
| Parameter | Value |
|---|---|
| NSN | 5965-01-551-4487 |
| Primary Part Number | 2405-28 |
| Item Name | Microphone,crystal |
| FSC / FSG | 5965 / 59 — Headsets, Handsets, Microphones and Speakers |
| Manufacturer | Amron International Inc |
| Status | ACTIVE |
| 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 |
|---|---|
| 2405-28 PRIMARY | Amron International Inc (USA) |
| 7550480-2405-28M | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 2405-28M | 5/2 Secondary reference U.S. Government activity |
| G547-0004-2405-28M | 5/2 Secondary reference U.S. Government activity |
| 7550480 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 5965-01-551-4487 is a Microphone,crystal, manufactured by Amron International Inc, classified under FSC 5965, Headsets, Handsets, Microphones and Speakers. Status: active.
NSN 5965-01-551-4487 has 2 manufacturer part numbers on file: 2405-28 (Amron International Inc), 7550480-2405-28M (Naval Sea Systems Command).
2 possible matches (shared part number, not a government interchangeability claim): 5325-01-552-7810, 5965-01-643-0703. Verify interchangeability with system specifications before substitution.
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.