The Switch,radio Frequency Transmiss, cataloged under National Stock Number 5985-00-690-4557, is classified within Federal Supply Class 5985 (Antennas, Waveguides, and Related Equipment) of the Electrical and Electronic Equipment Components group. Government technical data includes 23 specifications, cited from the U.S. Government catalog. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-00-690-4557 |
| Item Name | Switch,radio Frequency Transmiss |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 4 UNTHREADED HOLE(S) |
| Body Style | RECTANGULAR |
| Mounting Facility Pattern | FOUR POSITION RECTANGULAR SINGLE MOUNTING FACILITY PATTERN |
| Precious Material | SILVER |
| Voltage Standing Wave Ratio | 1.50 SINGLE |
| Unthreaded Mounting Hole Diameter | 0.152 INCHES MINIMUM AND 0.155 INCHES MAXIMUM IN |
| Longest Vertical Distance Between Mounting Centers | 1.807 INCHES MINIMUM AND 1.817 INCHES MAXIMUM SINGLE MOUNTING FACILITY PATTERN IN |
| Switch Return Mechanism Type | FAIL-SAFE |
| Connector End Design | FEMALE |
| Minimum Crosstalk Rating in Decibels | 40.0 SINGLE |
| Switch Type | TRANSFER |
| Actuator Operating Method | RELAY |
| Surface Treatment | ENAMEL BODY OUTSIDE SURFACES |
| Precious Material and Location | CONTACT SURFACES SILVER |
| Operating Temp Range | -55.0 TO 110.0 CELSIUS DEGC |
| Frequency Rating | 4275.0 MEGAHERTZ MINIMUM AND 4325.0 MEGAHERTZ MAXIMUM SINGLE FREQUENCY CROSSTALK REFERENCE |
| Frequency Rating | 4275.0 MEGAHERTZ MINIMUM AND 4325.0 MEGAHERTZ MAXIMUM SINGLE FREQUENCY OPERATING |
| Frequency Rating | 4275.0 MEGAHERTZ MINIMUM AND 4325.0 MEGAHERTZ MAXIMUM SINGLE FREQUENCY RF POWER HANDLING |
| Frequency Rating | 4275.0 MEGAHERTZ MINIMUM AND 4325.0 MEGAHERTZ MAXIMUM SINGLE FREQUENCY VOLTAGE STANDING WAVE RATIO |
| Rf Power Handling Capability | 30.0 WATTS PEAK SINGLE |
| Terminal Type and Quantity | 3 PLUG, COAXIAL |
| Coaxial Connector Series Designation | TNC |
| Longest Horizontal Distance Between Mounting Centers | 1.807 INCHES MINIMUM AND 1.817 INCHES MAXIMUM SINGLE MOUNTING FACILITY PATTERN IN |
| 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 |
|---|---|
| MODEL SC190 | 5/9 Secondary reference Hyletronics Limited Partnership |
| MA8305-1C1B | 5/9 Secondary reference U.S. Government activity |
| 3068550-1 | 3/9 Design control — primary reference Allied-Signal Inc Dba Allied-Signal Aerospace Co Electrodynamics Div |
| SYS3014 | 5/9 Secondary reference General Dynamics Advanced Information Systems Inc. Dba General Dynamics Advanced Information Systems |
| 3149785 | 5/9 Secondary reference Allied-Signal Inc Dba Allied-Signal Aerospace Co Electrodynamics Div |
| MODEL SC190 | 5/9 Secondary reference Litton Systems Inc Hyletronics Group-Airtron Div |
NSN 5985-00-690-4557 is a Switch,radio Frequency Transmiss, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
Key specifications for 5985-00-690-4557: Mounting Facility Type and Quantity: 4 UNTHREADED HOLE(S); Overall Height: 2.300 INCHES MAXIMUM IN; Body Style: RECTANGULAR; Mounting Facility Pattern: FOUR POSITION RECTANGULAR SINGLE MOUNTING FACILITY PATTERN. 23 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 5985-00-690-4557 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.