The Switch,radio Frequency Transmiss, cataloged under National Stock Number 5985-01-449-9987, 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 Dimensional Concepts Inc. Government technical data includes 16 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 | 5985-01-449-9987 |
| Primary Part Number | 4SS6R31 |
| Item Name | Switch,radio Frequency Transmiss |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Dimensional Concepts Inc |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 1 COLLAR AND 4 UNTHREADED HOLE(S) |
| Voltage Standing Wave Ratio | 1.40 THIRD |
| Voltage Standing Wave Ratio | 1.30 SECOND |
| Voltage Standing Wave Ratio | 1.20 FIRST |
| Voltage Standing Wave Ratio | 1.50 FOURTH |
| Coupling Position Quantity | 4 |
| Insertion Loss in Decibels | 0.30 FIRST |
| Insertion Loss in Decibels | 0.40 THIRD |
| Insertion Loss in Decibels | 0.50 FOURTH |
| Insertion Loss in Decibels | 0.35 SECOND |
| Actuator Operating Method | RELAY |
| Frequency Rating | 12.2 GIGAHERTZ MAXIMUM FOURTH FREQUENCY VOLTAGE STANDING WAVE RATIO |
| Frequency Rating | 4.0 GIGAHERTZ MAXIMUM FIRST FREQUENCY VOLTAGE STANDING WAVE RATIO |
| Frequency Rating | 4.8 GIGAHERTZ MAXIMUM SECOND FREQUENCY VOLTAGE STANDING WAVE RATIO |
| Frequency Rating | 8.1 GIGAHERTZ MAXIMUM THIRD FREQUENCY VOLTAGE STANDING WAVE RATIO |
| Terminal Type and Quantity | 7 SOLDER STUD |
| 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 |
|---|---|
| 4SS6R31 PRIMARY | Dimensional Concepts Inc (USA) |
NSN 5985-01-449-9987 is a Switch,radio Frequency Transmiss, manufactured by Dimensional Concepts Inc, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-449-9987 has 1 manufacturer part number on file: 4SS6R31 (Dimensional Concepts Inc).
Key specifications for 4SS6R31: Mounting Facility Type and Quantity: 1 COLLAR AND 4 UNTHREADED HOLE(S); Voltage Standing Wave Ratio: 1.40 THIRD; Voltage Standing Wave Ratio: 1.30 SECOND; Voltage Standing Wave Ratio: 1.20 FIRST. 16 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.