The Horn,waveguide, cataloged under National Stock Number 5985-01-406-7687, is classified within Federal Supply Class 5985 (Antennas, Waveguides, and Related Equipment) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Vertex Modernization and Sustainment Llc. Government technical data includes 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-406-7687 |
| Primary Part Number | 3556970-4 |
| Item Name | Horn,waveguide |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Vertex Modernization and Sustainment Llc |
| Status | ACTIVE |
| Connection Method | WAVEGUIDE FLANGE |
| Accommodated Conductor Type | WAVEGUIDE |
| Material | ALUMINUM ALLOY 6061 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 3556970-4 PRIMARY | Vertex Modernization and Sustainment Llc (USA) |
| Reference | Meaning |
|---|---|
| 3556970-4 | 5/9 Secondary reference U.S. Government activity |
NSN 5985-01-406-7687 is a Horn,waveguide, manufactured by Vertex Modernization and Sustainment Llc, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-406-7687 has 1 manufacturer part number on file: 3556970-4 (Vertex Modernization and Sustainment Llc).
Key specifications for 3556970-4: Connection Method: WAVEGUIDE FLANGE; Overall Length: 0.865 INCHES NOMINAL IN; Overall Width: 1.800 INCHES NOMINAL IN; Accommodated Conductor Type: WAVEGUIDE. 3 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.
NSN 5985-01-406-7687 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
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.