The Switch,radio Frequency Transmiss, cataloged under National Stock Number 5985-01-390-5182, 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 Naval Sea Systems Command. Government technical data includes 14 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-390-5182 |
| Primary Part Number | 6509890 |
| Item Name | Switch,radio Frequency Transmiss |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 4 UNTHREADED HOLE(S) |
| Surface Treatment Document and Classification | MIL-C-5541 MIL SPEC ALL TREATMENT RESPONSES COVER OUTSIDE SURFACES |
| Body Style | RECTANGULAR |
| Voltage Standing Wave Ratio | 1.20 SINGLE |
| Unthreaded Mounting Hole Diameter | 0.166 INCHES NOMINAL IN |
| Pole Quantity | 12 |
| Distance Between Mounting Facility Centers | 2.620 INCHES NOMINAL SINGLE MOUNTING FACILITY PATTERN IN |
| Coupling Position Quantity | 4 |
| Switch Type | NONTRANSFER |
| Insertion Loss in Decibels | 0.30 SINGLE |
| Surface Treatment | ALUMINUM ALLOY COVER OUTSIDE SURFACES |
| Frequency Rating | 0.0 GIGAHERTZ MINIMUM AND 1.0 GIGAHERTZ MAXIMUM SINGLE FREQUENCY OPERATING |
| Material | ALUMINUM ALLOY COVER |
| Terminal Type and Quantity | 12 QUICK DISCONNECT, MALE |
| 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 |
|---|---|
| 6509890 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 43-28D-S-1255 | 5/9 Secondary reference Wavetek U S Inc Div of Wavetek Corp |
NSN 5985-01-390-5182 is a Switch,radio Frequency Transmiss, manufactured by Naval Sea Systems Command, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-390-5182 has 1 manufacturer part number on file: 6509890 (Naval Sea Systems Command).
Key specifications for 6509890: Mounting Facility Type and Quantity: 4 UNTHREADED HOLE(S); Surface Treatment Document and Classification: MIL-C-5541 MIL SPEC ALL TREATMENT RESPONSES COVER OUTSIDE SURFACES; Body Style: RECTANGULAR; Voltage Standing Wave Ratio: 1.20 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.
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.