The Earphone,holder, cataloged under National Stock Number 8415-01-330-6618, is classified within Federal Supply Class 8415 (Clothing, Special Purpose) of the Clothing, Individual Equipment, and Insignia group. The manufacturer of record is Telegi Srl. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 8415-01-330-6618 |
| Primary Part Number | 5387.4B-6573 |
| Item Name | Earphone,holder |
| FSC / FSG | 8415 / 84 — Clothing, Special Purpose |
| Manufacturer | Telegi Srl |
| Status | ACTIVE |
| General Characteristics Item Description | USED W/HELMET,FLYER'S SPH-4B |
| Procurement Group Code | 20973 |
| 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 |
|---|---|
| 5387.4B-6573 | Telegi Srl (ITA) |
| 83C6573 | O&s Aviation Srl (ITA) |
| Reference | Meaning |
|---|---|
| 83C6573 | 3/2 Design control — primary reference U.S. Government activity |
| F9922-000052 | 6/9 Informative reference only Forsvarets Materielverk |
| 1680-ALSE-176-1 | 5/2 Secondary reference U.S. Government activity |
NSN 8415-01-330-6618 is a Earphone,holder, manufactured by Telegi Srl, classified under FSC 8415, Clothing, Special Purpose. Status: active.
NSN 8415-01-330-6618 has 2 manufacturer part numbers on file: 5387.4B-6573 (Telegi Srl), 83C6573 (O&s Aviation Srl).
Key specifications for 5387.4B-6573: General Characteristics Item Description: USED W/HELMET,FLYER'S SPH-4B; Procurement Group Code: 20973. 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.