The Switch,radio Frequency Transmiss, cataloged under National Stock Number 5985-00-445-1350, 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 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp. Government technical data includes 22 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5985-00-445-1350 |
| Primary Part Number | 129674 |
| Item Name | Switch,radio Frequency Transmiss |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 3 THREADED HOLE(S) |
| Body Style | RECTANGULAR |
| Actuator Voltage in Volts | 28.0 NOMINAL |
| Voltage Standing Wave Ratio | 1.20 SINGLE |
| Pole Quantity | 1 |
| Switch Return Mechanism Type | FAIL-SAFE |
| Connector End Design | FEMALE AND MALE |
| Coupling Position Quantity | 3 |
| Nominal Thread Size | 0.138 INCHES MOUNTING FACILITY HOLE IN |
| Minimum Crosstalk Rating in Decibels | 40.0 SINGLE |
| Switch Type | NONTRANSFER |
| Insertion Loss in Decibels | 0.25 SINGLE |
| Operating Temp Range | -55.0 TO 100.0 CELSIUS DEGC |
| Frequency Rating | 255.0 MEGAHERTZ MINIMUM AND 400.0 MEGAHERTZ MAXIMUM SINGLE FREQUENCY CROSSTALK REFERENCE |
| Frequency Rating | 255.0 MEGAHERTZ MINIMUM AND 400.0 MEGAHERTZ MAXIMUM SINGLE FREQUENCY OPERATING |
| Rf Power Handling Capability | 30.0 WATTS AVERAGE SINGLE |
| Terminal Type and Quantity | 1 PIN AND 2 PLUG, COAXIAL AND 1 RECEPTACLE, COAXIAL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) MOUNTING FACILITY HOLE |
| Switch Operation Sequence | BREAKS BEFORE MAKES |
| Coaxial Connector Series Designation | MB |
| Throw Quantity | 2 |
| Rf Maximum Voltage Rating | 500.0 VOLTS RMS |
| 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 |
|---|---|
| 129674 | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA) |
| Reference | Meaning |
|---|---|
| 410-0155-000 | 5/2 Secondary reference U.S. Government activity |
| 410-0155-00 | 3/9 Design control — primary reference Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems |
NSN 5985-00-445-1350 is a Switch,radio Frequency Transmiss, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-00-445-1350 has 1 manufacturer part number on file: 129674 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp).
1 possible match (shared part number, not a government interchangeability claim): 3120-01-495-6303. Verify interchangeability with system specifications before substitution.
Key specifications for 129674: Mounting Facility Type and Quantity: 3 THREADED HOLE(S); Overall Height: 0.750 INCHES NOMINAL IN; Body Style: RECTANGULAR; Actuator Voltage in Volts: 28.0 NOMINAL. 22 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.