The Switch,radio Frequency Transmiss, cataloged under National Stock Number 5985-01-261-5381, 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 K&l Microwave Llc. Government technical data includes 13 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5985-01-261-5381 |
| Primary Part Number | 144C71300 |
| Item Name | Switch,radio Frequency Transmiss |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | K&l Microwave Llc |
| Status | ACTIVE |
| Switching Time | 20.0 MICROSECONDS US |
| Body Style | RECTANGULAR |
| Pole Quantity | 1 |
| Switch Return Mechanism Type | FAIL-SAFE |
| Connector End Design | FEMALE |
| Coupling Position Quantity | 5 |
| Switch Type | NONTRANSFER |
| Operating Temp Range | -55.0 TO 85.0 CELSIUS DEGC |
| Terminal Type and Quantity | 10 PIN |
| Switch Operation Sequence | MAKES BEFORE BREAKS |
| Coaxial Connector Series Designation | SMA |
| Throw Quantity | 4 |
| Rf Maximum Voltage Rating | 30.0 VOLTS PEAK |
| 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 |
|---|---|
| 144C71300 | K&l Microwave Llc (USA) |
| Reference | Meaning |
|---|---|
| STCC64D082-1 | 3/9 Design control — primary reference Lockheed Martin Corp |
| 144C71300 | 5/9 Secondary reference U.S. Government activity |
NSN 5985-01-261-5381 is a Switch,radio Frequency Transmiss, manufactured by K&l Microwave Llc, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-261-5381 has 1 manufacturer part number on file: 144C71300 (K&l Microwave Llc).
Key specifications for 144C71300: Switching Time: 20.0 MICROSECONDS US; Overall Height: 1.750 INCHES NOMINAL IN; Body Style: RECTANGULAR; Pole Quantity: 1. 13 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.