The Switch,radio Frequency Transmiss, cataloged under National Stock Number 5985-01-666-1303, 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 Planar Monolithics Industries, Inc.. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Switch,radio Frequency Transmiss |
| FSC / FSG | 5985 — Antennas, Waveguides, and Related Equipment (FSG 59) |
| Manufacturers | Planar Monolithics Industries, Inc. (CAGE 05XQ0) |
| Parameter | Value |
|---|---|
| NSN | 5985-01-666-1303 |
| Primary Part Number | PMSN-4DT-561R875 |
| Item Name | Switch,radio Frequency Transmiss |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Planar Monolithics Industries, Inc. |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| PMSN-4DT-561R875 PRIMARY | Planar Monolithics Industries, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 561R875 | 1/2 Source control — Government-approved source U.S. Government activity |
| 561R875H02 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5985-01-666-1303 is a Switch,radio Frequency Transmiss, manufactured by Planar Monolithics Industries, Inc., classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-666-1303 has 1 manufacturer part number on file: PMSN-4DT-561R875 (Planar Monolithics Industries, Inc.).
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.