The Switch,radio Frequency Transmiss, cataloged under National Stock Number 5985-01-042-0669, 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 15 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-042-0669 |
| Primary Part Number | 144C70100 |
| 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 MILLISECONDS MS |
| Body Style | CYLINDRICAL |
| Overall Diameter | 1.556 INCHES MINIMUM AND 1.560 INCHES MAXIMUM IN |
| Actuator Voltage in Volts | 20.0 MINIMUM AND 30.0 MAXIMUM |
| Pole Quantity | 1 |
| Switch Return Mechanism Type | FAIL-SAFE |
| Connector End Design | FEMALE |
| Actuator Current Type and Rating in Amps | 0.17 DC MAXIMUM |
| Coupling Position Quantity | 6 |
| Switch Type | NONTRANSFER |
| Operating Temp Range | -54.0 TO 85.0 CELSIUS DEGC |
| Terminal Type and Quantity | 1 CONNECTOR, RECEPTACLE AND 7 RECEPTACLE, COAXIAL |
| Switch Operation Sequence | BREAKS BEFORE MAKES |
| Coaxial Connector Series Designation | SMA |
| Throw Quantity | 4 |
| 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 |
|---|---|
| 144C70100 PRIMARY | K&l Microwave Llc (USA) |
| 144C70100 | Dow-Key Microwave Llc (USA) |
| Reference | Meaning |
|---|---|
| 82152-144C70100 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| S-3253 | 5/9 Secondary reference Teledyne Mechanical Products |
| 144C70100 | 5/9 Secondary reference U.S. Government activity |
NSN 5985-01-042-0669 is a Switch,radio Frequency Transmiss, manufactured by K&l Microwave Llc, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-042-0669 has 2 manufacturer part numbers on file: 144C70100 (K&l Microwave Llc), 144C70100 (Dow-Key Microwave Llc).
1 possible match (shared part number, not a government interchangeability claim): 5340-01-423-2314. Verify interchangeability with system specifications before substitution.
Key specifications for 144C70100: Switching Time: 20.0 MILLISECONDS MS; Overall Height: 1.750 INCHES NOMINAL IN; Body Style: CYLINDRICAL; Overall Diameter: 1.556 INCHES MINIMUM AND 1.560 INCHES MAXIMUM IN. 15 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 5985-01-042-0669 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.