The Switch,waveguide, cataloged under National Stock Number 5985-00-103-0449, 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 Caes Mission Systems Llc. Government technical data includes 25 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-00-103-0449 |
| Primary Part Number | MD25K6 |
| Item Name | Switch,waveguide |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Caes Mission Systems Llc |
| Status | ACTIVE |
| Waveguide Flange Type | COVER |
| Switching Time | 10.0 MICROSECONDS US |
| Mounting Facility Type and Quantity | 4 THREADED HOLE(S) |
| Coupling Position Quantity | 3 |
| Nominal Thread Size | 0.112 INCHES MOUNTING FACILITY HOLE IN |
| Minimum Crosstalk Rating in Decibels | 34.0 FIRST |
| Minimum Crosstalk Rating in Decibels | 35.0 SECOND |
| Switch Type | TRANSFER |
| Insertion Loss in Decibels | 1.10 SINGLE |
| Actuator Operating Method | SOLID STATE |
| Surface Treatment | CHROMATE BODY OUTSIDE SURFACES |
| Surface Treatment | CHROMATE FLANGE(S) OUTSIDE SURFACES |
| Operating Temp Range | -54.0 TO 71.0 CELSIUS DEGC |
| Frequency Rating | 13.275 GIGAHERTZ MINIMUM AND 13.295 GIGAHERTZ MAXIMUM FIRST FREQUENCY CROSSTALK REFERENCE |
| Frequency Rating | 13.275 GIGAHERTZ MINIMUM AND 13.295 GIGAHERTZ MAXIMUM FIRST FREQUENCY VOLTAGE STANDING WAVE RATIO |
| Frequency Rating | 13.275 GIGAHERTZ MINIMUM AND 13.375 GIGAHERTZ MAXIMUM SINGLE FREQUENCY INSERTION LOSS REFERENCE |
| Frequency Rating | 13.275 GIGAHERTZ MINIMUM AND 13.375 GIGAHERTZ MAXIMUM SINGLE FREQUENCY OPERATING |
| Frequency Rating | 13.275 GIGAHERTZ MINIMUM AND 13.375 GIGAHERTZ MAXIMUM SINGLE FREQUENCY RF POWER HANDLING |
| Frequency Rating | 13.295 GIGAHERTZ MINIMUM AND 13.375 GIGAHERTZ MAXIMUM SECOND FREQUENCY CROSSTALK REFERENCE |
| Frequency Rating | 13.295 GIGAHERTZ MINIMUM AND 13.375 GIGAHERTZ MAXIMUM SECOND FREQUENCY VOLTAGE STANDING WAVE RATIO |
| Rf Power Handling Capability | 15.0 WATTS AVERAGE FIRST |
| Rf Power Handling Capability | 30.0 WATTS PEAK SECOND |
| Material | ALUMINUM ALLOY BODY |
| Flange Connecting Facility and Quantity | 4 THREADED HOLE(S) |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) MOUNTING FACILITY HOLE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| MD25K6 PRIMARY | Caes Mission Systems Llc (USA) |
| G128-175-001 | Bae Systems Information and Electronic Systems Integration Inc. (USA) |
| Reference | Meaning |
|---|---|
| G128-175-001 | 5/9 Secondary reference U.S. Government activity |
| 61762 | 5/9 Secondary reference Skyworks Solutions, Inc. |
| MA8320-2Z2 | 5/9 Secondary reference U.S. Government activity |
NSN 5985-00-103-0449 is a Switch,waveguide, manufactured by Caes Mission Systems Llc, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-00-103-0449 has 2 manufacturer part numbers on file: MD25K6 (Caes Mission Systems Llc), G128-175-001 (Bae Systems Information and Electronic Systems Integration Inc.).
5 possible matches (shared part number, not a government interchangeability claim): 5360-00-194-9101, 1270-00-403-8979, 5845-00-876-9812. Verify interchangeability with system specifications before substitution.
Key specifications for MD25K6: Waveguide Flange Type: COVER; Switching Time: 10.0 MICROSECONDS US; Mounting Facility Type and Quantity: 4 THREADED HOLE(S); Coupling Position Quantity: 3. 25 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 5985-00-103-0449 has DEMIL Code D. 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.