The Switch,radio Frequency Transmiss, cataloged under National Stock Number 5985-01-490-0201, 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 Scientific Components Corp Dba Mini-Circuits. Government technical data includes 22 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-490-0201 |
| Primary Part Number | ZMSW-1211 |
| Item Name | Switch,radio Frequency Transmiss |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Scientific Components Corp Dba Mini-Circuits |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 4 UNTHREADED HOLE(S) |
| Body Style | RECTANGULAR |
| Mounting Facility Pattern | FOUR POSITION RECTANGULAR SINGLE MOUNTING FACILITY PATTERN |
| Actuator Voltage in Volts | 5.0 NOMINAL |
| Unthreaded Mounting Hole Diameter | 0.135 INCHES MINIMUM AND 0.165 INCHES MAXIMUM IN |
| Pole Quantity | 1 |
| Connector End Design | FEMALE |
| Actuator Current Type and Rating in Amps | 0.005 DC NOMINAL |
| Distance Between Mounting Facility Centers | 2.190 INCHES NOMINAL AND 0.850 INCHES NOMINAL SINGLE MOUNTING FACILITY PATTERN IN |
| Coupling Position Quantity | 3 |
| Minimum Crosstalk Rating in Decibels | 28.0 THIRD |
| Minimum Crosstalk Rating in Decibels | 35.0 SECOND |
| Minimum Crosstalk Rating in Decibels | 50.0 FIRST |
| Switch Type | NONTRANSFER |
| Insertion Loss in Decibels | 1.10 FIRST |
| Insertion Loss in Decibels | 1.90 SECOND |
| Actuator Operating Method | SOLID STATE |
| Frequency Rating | 10.0 MEGAHERTZ MINIMUM AND 2500.0 MEGAHERTZ MAXIMUM SINGLE FREQUENCY OPERATING |
| Material | ALUMINUM ALLOY BODY |
| Terminal Type and Quantity | 3 RECEPTACLE, COAXIAL AND 4 SOLDER STUD |
| Coaxial Connector Series Designation | SMA |
| Throw Quantity | 2 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| ZMSW-1211 PRIMARY | Scientific Components Corp Dba Mini-Circuits (USA) |
NSN 5985-01-490-0201 is a Switch,radio Frequency Transmiss, manufactured by Scientific Components Corp Dba Mini-Circuits, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-490-0201 has 1 manufacturer part number on file: ZMSW-1211 (Scientific Components Corp Dba Mini-Circuits).
Key specifications for ZMSW-1211: Mounting Facility Type and Quantity: 4 UNTHREADED HOLE(S); Overall Height: 0.940 INCHES MINIMUM AND 1.000 INCHES MAXIMUM IN; Body Style: RECTANGULAR; Mounting Facility Pattern: FOUR POSITION RECTANGULAR SINGLE MOUNTING FACILITY PATTERN. 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.
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.