The Switch,radio Frequency Transmiss, cataloged under National Stock Number 5985-01-297-1900, 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 Dow-Key Microwave Llc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Switch,radio Frequency Transmiss |
| FSC / FSG | 5985 — Antennas, Waveguides, and Related Equipment (FSG 59) |
| Manufacturers | Dow-Key Microwave Llc (CAGE 00471) |
| Parameter | Value |
|---|---|
| NSN | 5985-01-297-1900 |
| Primary Part Number | MS-28-F-SMA-I |
| Item Name | Switch,radio Frequency Transmiss |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Dow-Key Microwave Llc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Part Number | Manufacturer |
|---|---|
| MS-28-F-SMA-I PRIMARY | Dow-Key Microwave Llc (USA) |
| Reference | Meaning |
|---|---|
| S313-B067 | 5/9 Secondary reference K&l Microwave Llc |
| A106-604-0001 | 5/9 Secondary reference K&l Microwave Llc |
| MS-28-F-SMA-I | 5/9 Secondary reference K&l Microwave Llc |
| MS-28-F-0-1 | C/1 Advisory reference — outside the item-of-supply concept K&l Microwave Llc |
NSN 5985-01-297-1900 is a Switch,radio Frequency Transmiss, manufactured by Dow-Key Microwave Llc, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-297-1900 has 1 manufacturer part number on file: MS-28-F-SMA-I (Dow-Key Microwave Llc).
1 possible match (shared part number, not a government interchangeability claim): 5945-01-314-8042. 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.
NSN 5985-01-297-1900 has DEMIL Code Q. 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.