The Switch,radio Frequency Transmiss, cataloged under National Stock Number 5985-01-498-9690, 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 21 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-498-9690 |
| Primary Part Number | D1-412D39T |
| 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 |
| Mounting Facility Type and Quantity | 2 UNTHREADED HOLE(S) |
| Body Style | RECTANGULAR |
| Mounting Facility Pattern | TWO POSITION IN-LINE SINGLE MOUNTING FACILITY PATTERN |
| Actuator Voltage in Volts | 12.0 NOMINAL |
| Voltage Standing Wave Ratio | 1.50 SINGLE |
| Unthreaded Mounting Hole Diameter | 0.120 INCHES NOMINAL IN |
| Pole Quantity | 1 |
| Switch Return Mechanism Type | LATCHING |
| Connector End Design | FEMALE |
| Actuator Current Type and Rating in Amps | 0.15 DC MAXIMUM |
| Distance Between Mounting Facility Centers | 1.320 INCHES NOMINAL SINGLE MOUNTING FACILITY PATTERN IN |
| Coupling Position Quantity | 3 |
| Minimum Crosstalk Rating in Decibels | 60.0 SINGLE |
| Switch Type | NONTRANSFER |
| Insertion Loss in Decibels | 0.40 SINGLE |
| Actuator Operating Method | SOLID STATE |
| Frequency Rating | 0.0 GIGAHERTZ MINIMUM AND 18.0 GIGAHERTZ MAXIMUM SINGLE FREQUENCY OPERATING |
| Terminal Type and Quantity | 3 RECEPTACLE, COAXIAL AND 3 SOLDER STUD |
| Switch Operation Sequence | BREAKS BEFORE MAKES |
| Coaxial Connector Series Designation | SMA |
| Throw Quantity | 2 |
| 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 |
|---|---|
| D1-412D39T PRIMARY | Ducommun Labarge Technologies, Inc Dba Ducommun Labarge Technologies, Inc (USA) |
| Reference | Meaning |
|---|---|
| 802027205123-1 | 7/2 Vendor item drawing reference Navy, United States Department of the Dba Naval Surface Warfare Center Div Naval Surface Warfare Center Crane Division |
| 802027205123 | D/9 Drawing number reference only Navy, United States Department of the Dba Naval Surface Warfare Center Div Naval Surface Warfare Center Crane Division |
NSN 5985-01-498-9690 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 5985-01-498-9690 has 1 manufacturer part number on file: D1-412D39T (Ducommun Labarge Technologies, Inc Dba Ducommun Labarge Technologies, Inc).
Key specifications for D1-412D39T: Mounting Facility Type and Quantity: 2 UNTHREADED HOLE(S); Overall Height: 2.630 INCHES NOMINAL IN; Body Style: RECTANGULAR; Mounting Facility Pattern: TWO POSITION IN-LINE SINGLE MOUNTING FACILITY PATTERN. 21 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 5985-01-498-9690 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.