The Switch,radio Frequency Transmiss, cataloged under National Stock Number 5985-01-040-8165, 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. Government technical data includes 14 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through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-040-8165 |
| Primary Part Number | 310C30900 |
| Item Name | Switch,radio Frequency Transmiss |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Dow-Key Microwave Llc |
| Status | ACTIVE |
| Switching Time | 50.0 MILLISECONDS MS |
| Body Style | RECTANGULAR |
| Actuator Voltage in Volts | 28.0 NOMINAL |
| Pole Quantity | 2 |
| Switch Return Mechanism Type | FAIL-SAFE |
| Connector End Design | FEMALE |
| Actuator Current Type and Rating in Amps | 0.4 DC NOMINAL |
| Coupling Position Quantity | 4 |
| Switch Type | NONTRANSFER |
| Operating Temp Range | -55.0 TO 85.0 CELSIUS DEGC |
| Terminal Type and Quantity | 2 TAB, SOLDER LUG AND 4 RECEPTACLE, COAXIAL |
| Switch Operation Sequence | MAKES BEFORE BREAKS |
| Coaxial Connector Series Designation | TNC |
| Throw Quantity | 2 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 310C30900 | Dow-Key Microwave Llc (USA) |
| Reference | Meaning |
|---|---|
| 80-P04259F | 3/9 Design control — primary reference U.S. Government activity |
| 80-P04259F | 5/9 Secondary reference General Dynamics Mission Systems, Inc. Dba Gdms |
| 310C30900 | 5/9 Secondary reference K&l Microwave Llc |
| 80-P04259F | 5/9 Secondary reference Arrowsmith Shelburne Inc |
| 310C30900 | 5/9 Secondary reference U.S. Government activity |
| 80-P04259F | 5/9 Secondary reference Amphenol Corporation Div Amphenol Rf |
| MA7525-5042 | 5/9 Secondary reference U.S. Government activity |
NSN 5985-01-040-8165 is a Switch,radio Frequency Transmiss, manufactured by Dow-Key Microwave Llc, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-040-8165 has 1 manufacturer part number on file: 310C30900 (Dow-Key Microwave Llc).
Key specifications for 310C30900: Switching Time: 50.0 MILLISECONDS MS; Overall Height: 1.730 INCHES NOMINAL IN; Body Style: RECTANGULAR; Actuator Voltage in Volts: 28.0 NOMINAL. 14 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 5985-01-040-8165 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.