The Switch,radio Frequency Transmiss, cataloged under National Stock Number 5985-01-562-5561, 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 Ducommun Labarge Technologies, Inc Dba Ducommun Labarge Technologies, Inc. Government technical data includes 18 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-562-5561 |
| Primary Part Number | TK4-923E701L |
| Item Name | Switch,radio Frequency Transmiss |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Ducommun Labarge Technologies, Inc Dba Ducommun Labarge Technologies, Inc |
| Status | ACTIVE |
| Switching Time | 20.0 MILLISECONDS MS |
| Mounting Facility Type and Quantity | 4 THREADED HOLE(S) |
| Body Style | RECTANGULAR |
| Mounting Facility Pattern | FOUR POSITION DIAMOND SINGLE MOUNTING FACILITY PATTERN |
| Actuator Voltage in Volts | 24.0 MINIMUM AND 30.0 MAXIMUM |
| Voltage Standing Wave Ratio | 2.00 SINGLE |
| Switch Return Mechanism Type | FAIL-SAFE |
| Connector End Design | FEMALE |
| Nominal Thread Size | 0.112 INCHES MOUNTING FACILITY HOLE IN |
| Insertion Loss in Decibels | 0.90 SINGLE |
| Actuator Operating Method | SOLID STATE |
| Frequency Rating | 0.0 GIGAHERTZ MINIMUM AND 40.0 GIGAHERTZ MAXIMUM SINGLE FREQUENCY OPERATING |
| Rf Power Handling Capability | 30.0 WATTS AVERAGE SINGLE |
| Thread Class | 2B MOUNTING FACILITY HOLE |
| Material | ALUMINUM BODY |
| Terminal Type and Quantity | 4 CONNECTOR, RECEPTACLE |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) MOUNTING FACILITY HOLE |
| 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 |
| Part Number | Manufacturer |
|---|---|
| TK4-923E701L PRIMARY | Ducommun Labarge Technologies, Inc Dba Ducommun Labarge Technologies, Inc (USA) |
| Reference | Meaning |
|---|---|
| A3298666-201 | 7/2 Vendor item drawing reference U.S. Government activity |
NSN 5985-01-562-5561 is a Switch,radio Frequency Transmiss, manufactured by Ducommun Labarge Technologies, Inc Dba Ducommun Labarge Technologies, Inc, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-562-5561 has 1 manufacturer part number on file: TK4-923E701L (Ducommun Labarge Technologies, Inc Dba Ducommun Labarge Technologies, Inc).
Key specifications for TK4-923E701L: Switching Time: 20.0 MILLISECONDS MS; Mounting Facility Type and Quantity: 4 THREADED HOLE(S); Overall Height: 1.260 INCHES NOMINAL IN; Body Style: RECTANGULAR. 18 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 5985-01-562-5561 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.