The Switch,radio Frequency Transmiss, cataloged under National Stock Number 5985-00-166-9528, 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 27 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through both NSN and commercial part number lookups. 9 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-00-166-9528 |
| Primary Part Number | 411C-2308-5 |
| 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 |
| Mounting Facility Type and Quantity | 2 UNTHREADED HOLE(S) |
| Body Style | RECTANGULAR |
| Mounting Facility Pattern | TWO POSITION IN-LINE SINGLE MOUNTING FACILITY PATTERN |
| Actuator Voltage in Volts | 28.0 MAXIMUM |
| Voltage Standing Wave Ratio | 1.50 SINGLE |
| Unthreaded Mounting Hole Diameter | 0.149 INCHES NOMINAL IN |
| Switch Return Mechanism Type | FAIL-SAFE |
| Connector End Design | FEMALE |
| Actuator Current Type and Rating in Amps | 0.2 DC MAXIMUM |
| Distance Between Mounting Facility Centers | 2.430 INCHES NOMINAL SINGLE MOUNTING FACILITY PATTERN IN |
| Coupling Position Quantity | 4 |
| Minimum Crosstalk Rating in Decibels | 60.0 SINGLE |
| Switch Type | TRANSFER |
| Insertion Loss in Decibels | 0.50 SINGLE |
| Actuator Operating Method | RELAY |
| Surface Treatment | ANODIZE BODY OUTSIDE SURFACES |
| Operating Temp Range | -30.0 TO 110.0 CELSIUS DEGC |
| Frequency Rating | 2.0 GIGAHERTZ MINIMUM AND 18.0 GIGAHERTZ MAXIMUM SINGLE FREQUENCY CROSSTALK REFERENCE |
| Frequency Rating | 2.0 GIGAHERTZ MINIMUM AND 18.0 GIGAHERTZ MAXIMUM SINGLE FREQUENCY INSERTION LOSS REFERENCE |
| Frequency Rating | 2.0 GIGAHERTZ MINIMUM AND 18.0 GIGAHERTZ MAXIMUM SINGLE FREQUENCY OPERATING |
| Frequency Rating | 2.0 GIGAHERTZ MINIMUM AND 18.0 GIGAHERTZ MAXIMUM SINGLE FREQUENCY RF POWER HANDLING |
| Frequency Rating | 2.0 GIGAHERTZ MINIMUM AND 18.0 GIGAHERTZ MAXIMUM SINGLE FREQUENCY VOLTAGE STANDING WAVE RATIO |
| Rf Power Handling Capability | 500.0 WATTS PEAK SINGLE |
| Material | STEEL BODY |
| Terminal Type and Quantity | 2 TURRET AND 4 PLUG, COAXIAL |
| Switch Operation Sequence | MAKES BEFORE BREAKS |
| 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 |
|---|---|
| 411C-2308-5 | Dow-Key Microwave Llc (USA) |
| Reference | Meaning |
|---|---|
| MA7531-S018 | 5/9 Secondary reference U.S. Government activity |
| 580R911H05 | 5/9 Secondary reference K&l Microwave Llc |
| 580R911H05 | 5/9 Secondary reference Dow-Key Microwave Llc |
| 580R911H05 | 5/9 Secondary reference U.S. Government activity |
| 303-11022-31 | 5/9 Secondary reference Arrowsmith Shelburne Inc |
| 7531-4018-00 | 5/9 Secondary reference U.S. Government activity |
| 13-51-05450 | 5/9 Secondary reference Meggitt Safety Systems Inc |
| 580R911H05 | 5/9 Secondary reference Northrop Grumman Systems Corporation Dba Electronic Systems |
| 580R911H05 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5985-00-166-9528 is a Switch,radio Frequency Transmiss, manufactured by Dow-Key Microwave Llc, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-00-166-9528 has 1 manufacturer part number on file: 411C-2308-5 (Dow-Key Microwave Llc).
Key specifications for 411C-2308-5: Switching Time: 50.0 MILLISECONDS MS; Mounting Facility Type and Quantity: 2 UNTHREADED HOLE(S); Overall Height: 1.270 INCHES NOMINAL IN; Body Style: RECTANGULAR. 27 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 5985-00-166-9528 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.