The Switch,radio Frequency Transmiss, cataloged under National Stock Number 5985-01-133-8770, 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 Spectrum Microwave, Inc.. Government technical data includes 18 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-133-8770 |
| Primary Part Number | STT2180A |
| Item Name | Switch,radio Frequency Transmiss |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Spectrum Microwave, Inc. |
| Status | ACTIVE |
| Body Style | RECTANGULAR |
| Precious Material | GOLD |
| Pole Quantity | 1 |
| Switch Return Mechanism Type | FAIL-SAFE |
| Connector End Design | FEMALE |
| Coupling Position Quantity | 3 |
| Switch Type | NONTRANSFER |
| Precious Material and Location | CONTACTS GOLD |
| Frequency Rating | 0.0 GIGAHERTZ MINIMUM AND 6.0 GIGAHERTZ MAXIMUM FIRST FREQUENCY INSERTION LOSS REFERENCE |
| Frequency Rating | 0.0 GIGAHERTZ MINIMUM AND 1.0 GIGAHERTZ MAXIMUM SECOND FREQUENCY RF POWER HANDLING |
| Frequency Rating | 0.0 GIGAHERTZ MINIMUM AND 6.0 GIGAHERTZ MAXIMUM SINGLE FREQUENCY VOLTAGE STANDING WAVE RATIO |
| Frequency Rating | 0.0 GIGAHERTZ MINIMUM AND 8.0 GIGAHERTZ MAXIMUM FIRST FREQUENCY RF POWER HANDLING |
| Frequency Rating | 0.0 GIGAHERTZ MINIMUM AND 8.0 GIGAHERTZ MAXIMUM SECOND FREQUENCY INSERTION LOSS REFERENCE |
| Rf Power Handling Capability | 5.0 KILOWATTS PEAK SECOND |
| Rf Power Handling Capability | 400.0 WATTS AVERAGE FIRST |
| Switch Operation Sequence | MAKES BEFORE BREAKS |
| Coaxial Connector Series Designation | TNC |
| Throw Quantity | 2 |
| 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 |
|---|---|
| STT2180A PRIMARY | Spectrum Microwave, Inc. (USA) |
NSN 5985-01-133-8770 is a Switch,radio Frequency Transmiss, manufactured by Spectrum Microwave, Inc., classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-133-8770 has 1 manufacturer part number on file: STT2180A (Spectrum Microwave, Inc.).
Key specifications for STT2180A: Overall Height: 0.530 INCHES NOMINAL IN; Body Style: RECTANGULAR; Precious Material: GOLD; Pole Quantity: 1. 18 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.