The Horn,signal, cataloged under National Stock Number 6350-00-981-1337, is classified within Federal Supply Class 6350 (Miscellaneous Alarm, Signal, and Security Detection Systems) of the Alarm, Signal, and Security Detection Systems group. The manufacturer of record is Federal Signal Corporation. Government technical data includes 15 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6350-00-981-1337 |
| Primary Part Number | IC/H3D2N |
| Item Name | Horn,signal |
| FSC / FSG | 6350 / 63 — Miscellaneous Alarm, Signal, and Security Detection Systems |
| Manufacturer | Federal Signal Corporation |
| Status | ACTIVE |
| Loudness Level in Decibels | 112 DB AT 10 FT FT |
| Mounting Hole/stud Quantity | 3 |
| Terminal Quantity | 2 |
| Terminal Type | SCREW |
| Sound Projector Quantity | 1 |
| Sound Projector Type | TRUMPET |
| Nondefinitive Spec/std Data | IC/H3D2 TYPE |
| Mounting Bracket | PROVIDED |
| Environmental Protection | CORROSION RESISTANT AND SALT AIR RESISTANT |
| Enclosure Feature | WATERTIGHT |
| Terminal Thread Size and Series/type Designator | 6-32 UNIFIED NATIONAL COARSE (UNC) |
| Material | COPPER ALLOY HOUSING |
| Stud Thread Size and Series/type Designator | 3/8-16 UNIFIED NATIONAL COARSE (UNC) |
| Hole Diameter | 0.406 INCHES NOMINAL IN |
| Stud Diameter | 0.375 INCHES NOMINAL IN |
| 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 |
|---|---|
| IC/H3D2N PRIMARY | Federal Signal Corporation (USA) |
| Reference | Meaning |
|---|---|
| IC/H3D2 | 5/9 Secondary reference U.S. Government activity |
| MILA15303 | 4/1 Identification reference U.S. Government activity |
| IC/H3D2N | 5/9 Secondary reference U.S. Government activity |
| IC-H3D2 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 815-1853029TYICH3D2 | 3/2 Design control — primary reference U.S. Government activity |
| 815-185-3029 | 5/1 Secondary reference U.S. Government activity |
NSN 6350-00-981-1337 is a Horn,signal, manufactured by Federal Signal Corporation, classified under FSC 6350, Miscellaneous Alarm, Signal, and Security Detection Systems. Status: active.
NSN 6350-00-981-1337 has 1 manufacturer part number on file: IC/H3D2N (Federal Signal Corporation).
Key specifications for IC/H3D2N: Overall Height: 6.875 INCHES NOMINAL IN; Loudness Level in Decibels: 112 DB AT 10 FT FT; Mounting Hole/stud Quantity: 3; Terminal Quantity: 2. 15 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.