The Switch,radio Frequency Transmiss, cataloged under National Stock Number 5985-01-258-5667, 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 Alpha Industries Inc Advanced Products Div. The record lists 3 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Item Name | Switch,radio Frequency Transmiss |
| FSC / FSG | 5985 — Antennas, Waveguides, and Related Equipment (FSG 59) |
| Manufacturers | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple (CAGE 26916); Alpha Industries Inc Advanced Products Div (CAGE 53536); Caes Mission Systems Llc (CAGE 32187) |
| Parameter | Value |
|---|---|
| NSN | 5985-01-258-5667 |
| Primary Part Number | MT3987-99 |
| Item Name | Switch,radio Frequency Transmiss |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Alpha Industries Inc Advanced Products Div |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Part Number | Manufacturer |
|---|---|
| 62-054809 | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple (USA) |
| MT3987-99 PRIMARY | Alpha Industries Inc Advanced Products Div (USA) |
| MD-012L038 | Caes Mission Systems Llc (USA) |
| Reference | Meaning |
|---|---|
| MT 3987-99A | 5/9 Secondary reference Skyworks Solutions, Inc. |
| MA2664-9029 | 5/9 Secondary reference U.S. Government activity |
| 62-054809-01 | 5/9 Secondary reference Northrop Grumman Systems Corporation Div Es Defensive Systems Division |
NSN 5985-01-258-5667 is a Switch,radio Frequency Transmiss, manufactured by Alpha Industries Inc Advanced Products Div, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-258-5667 has 3 manufacturer part numbers on file: 62-054809 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple), MT3987-99 (Alpha Industries Inc Advanced Products Div), MD-012L038 (Caes Mission Systems Llc).
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 5985-01-258-5667 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.