The Switch,radio Frequency Transmiss, cataloged under National Stock Number 5985-01-650-0039, 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 Rlc Electronics, Inc. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-650-0039 |
| Primary Part Number | SR-4C-D40 |
| Item Name | Switch,radio Frequency Transmiss |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Rlc Electronics, Inc |
| Status | ACTIVE |
| Body Style | CYLINDRICAL |
| Overall Diameter | 1.556 INCHES MINIMUM AND 1.560 INCHES MAXIMUM IN |
| Connector End Design | FEMALE |
| Actuator Current Type and Rating in Amps | 40.0 DC NOMINAL |
| Coupling Position Quantity | 6 |
| Switch Type | TRANSFER |
| Actuator Operating Method | MANUAL |
| Frequency Rating | 40.0 GIGAHERTZ NOMINAL SINGLE FREQUENCY OPERATING |
| Terminal Type and Quantity | 6 PIN |
| 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 |
|---|---|
| 45182-0005 | Ewst Ltd (GBR) |
| SR-4C-D40 PRIMARY | Rlc Electronics, Inc (USA) |
NSN 5985-01-650-0039 is a Switch,radio Frequency Transmiss, manufactured by Rlc Electronics, Inc, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-650-0039 has 2 manufacturer part numbers on file: 45182-0005 (Ewst Ltd), SR-4C-D40 (Rlc Electronics, Inc).
Key specifications for SR-4C-D40: Body Style: CYLINDRICAL; Overall Diameter: 1.556 INCHES MINIMUM AND 1.560 INCHES MAXIMUM IN; Connector End Design: FEMALE; Overall Length: 2.24 INCHES NOMINAL IN. 9 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.