The Switch,radio Frequency Transmiss, cataloged under National Stock Number 5985-01-406-1857, 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 20 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-406-1857 |
| Primary Part Number | 401-211-2 |
| Item Name | Switch,radio Frequency Transmiss |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Dow-Key Microwave Llc |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 2 UNTHREADED HOLE(S) |
| Body Style | RECTANGULAR |
| Mounting Facility Pattern | TWO POSITION IN-LINE SINGLE MOUNTING FACILITY PATTERN |
| Voltage Standing Wave Ratio | 1.20 SINGLE |
| Unthreaded Mounting Hole Diameter | 0.093 INCHES NOMINAL IN |
| Switch Return Mechanism Type | FAIL-SAFE |
| Connector End Design | FEMALE |
| Distance Between Mounting Facility Centers | 1.187 INCHES NOMINAL SINGLE MOUNTING FACILITY PATTERN IN |
| Coupling Position Quantity | 3 |
| Minimum Crosstalk Rating in Decibels | 50.0 SINGLE |
| Switch Type | NONTRANSFER |
| Insertion Loss in Decibels | 0.10 SINGLE |
| Operating Temp Range | -54.0 TO 76.0 CELSIUS DEGC |
| Frequency Rating | 225.0 MEGAHERTZ MINIMUM AND 400.0 MEGAHERTZ MAXIMUM SINGLE FREQUENCY CROSSTALK REFERENCE |
| Frequency Rating | 225.0 MEGAHERTZ MINIMUM AND 400.0 MEGAHERTZ MAXIMUM SINGLE FREQUENCY INSERTION LOSS REFERENCE |
| Frequency Rating | 225.0 MEGAHERTZ MINIMUM AND 400.0 MEGAHERTZ MAXIMUM SINGLE FREQUENCY OPERATING |
| Frequency Rating | 225.0 MEGAHERTZ MINIMUM AND 400.0 MEGAHERTZ MAXIMUM SINGLE FREQUENCY VOLTAGE STANDING WAVE RATIO |
| Terminal Type and Quantity | 3 PIN AND 3 RECEPTACLE, COAXIAL |
| Switch Operation Sequence | BREAKS BEFORE MAKES |
| Coaxial Connector Series Designation | SMA |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 401-211-2 PRIMARY | Dow-Key Microwave Llc (USA) |
| 47-00214-002 | Raytheon Company (USA) |
NSN 5985-01-406-1857 is a Switch,radio Frequency Transmiss, manufactured by Dow-Key Microwave Llc, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-406-1857 has 2 manufacturer part numbers on file: 401-211-2 (Dow-Key Microwave Llc), 47-00214-002 (Raytheon Company).
Key specifications for 401-211-2: Mounting Facility Type and Quantity: 2 UNTHREADED HOLE(S); Overall Height: 1.340 INCHES NOMINAL IN; Body Style: RECTANGULAR; Mounting Facility Pattern: TWO POSITION IN-LINE SINGLE MOUNTING FACILITY PATTERN. 20 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 5985-01-406-1857 has DEMIL Code D. 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.