The Switch,radio Frequency Transmiss, cataloged under National Stock Number 5985-00-490-6840, is classified within Federal Supply Class 5985 (Antennas, Waveguides, and Related Equipment) of the Electrical and Electronic Equipment Components group. Government technical data includes 22 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-00-490-6840 |
| Item Name | Switch,radio Frequency Transmiss |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Status | ACTIVE |
| Switching Time | 50.0 MILLISECONDS MS |
| Mounting Facility Type and Quantity | 2 BRACKET(S) |
| Body Style | IRREGULAR |
| Actuator Voltage in Volts | 22.0 MINIMUM AND 30.0 MAXIMUM |
| Voltage Standing Wave Ratio | 1.25 SINGLE |
| Switch Return Mechanism Type | FAIL-SAFE |
| Connector End Design | FEMALE |
| Coupling Position Quantity | 3 |
| Minimum Crosstalk Rating in Decibels | 60.0 SINGLE |
| Switch Type | TRANSFER |
| Insertion Loss in Decibels | 0.30 SINGLE |
| Actuator Operating Method | RELAY |
| Operating Temp Range | -40.0 TO 70.0 CELSIUS DEGC |
| Frequency Rating | 8.4 GIGAHERTZ MINIMUM AND 12.0 GIGAHERTZ MAXIMUM SINGLE FREQUENCY CROSSTALK REFERENCE |
| Frequency Rating | 8.4 GIGAHERTZ MINIMUM AND 12.0 GIGAHERTZ MAXIMUM SINGLE FREQUENCY INSERTION LOSS REFERENCE |
| Frequency Rating | 8.4 GIGAHERTZ MINIMUM AND 12.0 GIGAHERTZ MAXIMUM SINGLE FREQUENCY OPERATING |
| Frequency Rating | 8.4 GIGAHERTZ MINIMUM AND 12.0 GIGAHERTZ MAXIMUM SINGLE FREQUENCY RF POWER HANDLING |
| Frequency Rating | 8.4 GIGAHERTZ MINIMUM AND 12.0 GIGAHERTZ MAXIMUM SINGLE FREQUENCY VOLTAGE STANDING WAVE RATIO |
| Rf Power Handling Capability | 5.0 KILOWATTS PEAK SINGLE |
| Terminal Type and Quantity | 2 PIN |
| Switch Operation Sequence | MAKES BEFORE BREAKS |
| Coaxial Connector Series Designation | SMA |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 54000-90008 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5985-00-490-6840 is a Switch,radio Frequency Transmiss, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
Key specifications for 5985-00-490-6840: Switching Time: 50.0 MILLISECONDS MS; Mounting Facility Type and Quantity: 2 BRACKET(S); Overall Height: 0.500 INCHES NOMINAL IN; Body Style: IRREGULAR. 22 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 5985-00-490-6840 has DEMIL Code B. 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.