The Switch,waveguide, cataloged under National Stock Number 5985-00-043-1126, 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 Bae Systems Information and Electronic Systems Integration Inc.. Government technical data includes 14 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-00-043-1126 |
| Primary Part Number | G128-218-001 |
| Item Name | Switch,waveguide |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Bae Systems Information and Electronic Systems Integration Inc. |
| Status | ACTIVE |
| Waveguide Flange Type | CHOKE AND COVER |
| Body Style | RECTANGULAR |
| Voltage Standing Wave Ratio | 1.30 SINGLE |
| Pole Quantity | 1 |
| Switch Return Mechanism Type | FAIL-SAFE |
| Minimum Crosstalk Rating in Decibels | 60.0 SINGLE |
| Switch Type | NONTRANSFER |
| Insertion Loss in Decibels | 1.00 SINGLE |
| Actuator Operating Method | RELAY |
| Operating Temp Range | -55.0 TO 85.0 CELSIUS DEGC |
| Rf Power Handling Capability | 5.0 WATTS AVERAGE SINGLE |
| Flange Connecting Facility and Quantity | 4 UNTHREADED HOLE(S) AND 4 THREADED HOLE(S) |
| Terminal Type and Quantity | 1 RECEPTACLE, COAXIAL AND 2 RECTANGULAR FLANGE |
| 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 |
|---|---|
| G7123-578 | Bae Systems Information and Electronic Systems Integration Inc. (USA) |
| G128-218-001 PRIMARY | Bae Systems Information and Electronic Systems Integration Inc. (USA) |
| Reference | Meaning |
|---|---|
| G128-218-001 | 5/9 Secondary reference U.S. Government activity |
| MA83201Z7 | 5/9 Secondary reference U.S. Government activity |
| G7123-578 | 5/9 Secondary reference U.S. Government activity |
NSN 5985-00-043-1126 is a Switch,waveguide, manufactured by Bae Systems Information and Electronic Systems Integration Inc., classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-00-043-1126 has 2 manufacturer part numbers on file: G7123-578 (Bae Systems Information and Electronic Systems Integration Inc.), G128-218-001 (Bae Systems Information and Electronic Systems Integration Inc.).
Key specifications for G128-218-001: Waveguide Flange Type: CHOKE AND COVER; Overall Height: 1.310 INCHES NOMINAL IN; Body Style: RECTANGULAR; Voltage Standing Wave Ratio: 1.30 SINGLE. 14 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 5985-00-043-1126 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.