The Switch,radio Frequency Transmiss, cataloged under National Stock Number 5985-01-374-7168, 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 17 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5985-01-374-7168 |
| Primary Part Number | 638125-1 |
| Item Name | Switch,radio Frequency Transmiss |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | K&l Microwave Llc |
| Status | ACTIVE |
| Switching Time | 200.0 NANOSECONDS NS |
| Mounting Facility Type and Quantity | 2 UNTHREADED HOLE(S) |
| Mounting Facility Pattern | TWO POSITION DIAGONAL SINGLE MOUNTING FACILITY PATTERN |
| Voltage Standing Wave Ratio | 1.50 SINGLE |
| Unthreaded Mounting Hole Diameter | 0.120 INCHES NOMINAL IN |
| Pole Quantity | 1 |
| Longest Vertical Distance Between Mounting Centers | 1.000 INCHES NOMINAL SINGLE MOUNTING FACILITY PATTERN IN |
| Coupling Position Quantity | 6 |
| Minimum Crosstalk Rating in Decibels | 40.0 SINGLE |
| Switch Type | NONTRANSFER |
| Insertion Loss in Decibels | 0.60 SINGLE |
| Actuator Operating Method | RELAY |
| Frequency Rating | 1.2 GIGAHERTZ MINIMUM AND 1.4 GIGAHERTZ MAXIMUM SINGLE FREQUENCY OPERATING |
| Rf Power Handling Capability | 0.2 WATTS AVERAGE SINGLE |
| Terminal Type and Quantity | 2 PLUG, COAXIAL AND 3 PIN AND 1 TURRET |
| Longest Horizontal Distance Between Mounting Centers | 0.800 INCHES NOMINAL SINGLE MOUNTING FACILITY PATTERN IN |
| Throw Quantity | 1 |
| 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 |
|---|---|
| 638125-1 PRIMARY | K&l Microwave Llc (USA) |
| 638125-01 | Bae Systems Controls Inc (USA) |
| CMCS0444 | Custom Microwave Components, Inc Dba Custom Microwave Components Inc (USA) |
| Reference | Meaning |
|---|---|
| MA2660-9038 | 5/9 Secondary reference U.S. Government activity |
NSN 5985-01-374-7168 is a Switch,radio Frequency Transmiss, manufactured by K&l Microwave Llc, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-374-7168 has 3 manufacturer part numbers on file: 638125-1 (K&l Microwave Llc), 638125-01 (Bae Systems Controls Inc), CMCS0444 (Custom Microwave Components, Inc Dba Custom Microwave Components Inc).
Key specifications for 638125-1: Switching Time: 200.0 NANOSECONDS NS; Mounting Facility Type and Quantity: 2 UNTHREADED HOLE(S); Overall Height: 1.200 INCHES NOMINAL IN; Mounting Facility Pattern: TWO POSITION DIAGONAL SINGLE MOUNTING FACILITY PATTERN. 17 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 5985-01-374-7168 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.