The Switch,rotary, cataloged under National Stock Number 5930-01-084-6590, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch. Government technical data includes 29 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5930-01-084-6590 |
| Primary Part Number | 277456-EK3 |
| Item Name | Switch,rotary |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch |
| Status | ACTIVE |
| Shaft Type | ROUND, FLATTED SINGLE ACTUATOR |
| Shaft Diameter | 0.250 INCHES NOMINAL SINGLE ACTUATOR IN |
| Switch Contact Basic Design | NONPILE-UP SYMMETRICAL |
| Terminal Type | TAB, SOLDER LUG |
| Overall Diameter | 1.891 INCHES MAXIMUM IN |
| First Flat Length | 0.280 INCHES NOMINAL SINGLE ACTUATOR IN |
| Detent Rotational Torque Range | +35.000 TO 65.000 INCH-OUNCES SINGLE ACTUATOR IN |
| Precious Material | GOLD |
| Rotor Through Connection Quantity | 1 EACH SECTION |
| Contact Load Current Rating | 250.0 MILLIAMPERES RESISTIVE LOAD LOWEST AC VOLTAGE RATING AT SEA LEVEL |
| Contact Load Current Rating | 50.0 MILLIAMPERES RESISTIVE LOAD HIGHEST AC VOLTAGE RATING AT SEA LEVEL |
| Contact Load Current Rating | 350.0 MILLIAMPERES RESISTIVE LOAD DC AT ALTITUDE |
| Contact Load Current Rating | 500.0 MILLIAMPERES RESISTIVE LOAD AND 50.0 MILLIAMPERES INDUCTIVE LOAD DC AT SEA LEVEL |
| Contact Load Current Rating | 100.0 MILLIAMPERES RESISTIVE LOAD AC AT ALTITUDE |
| Mounting Method | THREADED BUSHING WITH PANEL SEAL SINGLE MOUNTING FACILITY |
| Thread Length | 0.312 INCHES NOMINAL SINGLE MOUNTING FACILITY IN |
| Pole Quantity | 1 EACH SECTION FRONT |
| Style Designator | CIRCULAR WAFER, BUSHING MOUNT |
| Individual Section Quantity | 3 |
| Nonturn Device Type | SLOTTED BUSHING AT 3:00 OCLOCK |
| Nominal Thread Size | 0.375 INCHES SINGLE MOUNTING FACILITY IN |
| Shaft Length | 0.560 INCHES NOMINAL SINGLE ACTUATOR IN |
| Switch Actuator Stop Device Type | FIXED STOP SINGLE ACTUATOR |
| Contact Switching Action | BREAKS BEFORE MAKES EACH SECTION REAR |
| Contact Voltage Rating in Volts | 28.0 DC AT ALTITUDE |
| Contact Voltage Rating in Volts | 115.0 AC AT ALTITUDE |
| Contact Voltage Rating in Volts | 28.0 DC AT SEA LEVEL |
| Contact Voltage Rating in Volts | 300.0 HIGHEST AC VOLTAGE RATING AT SEA LEVEL |
| Contact Voltage Rating in Volts | 115.0 LOWEST AC VOLTAGE RATING AT SEA LEVEL |
| 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 |
|---|---|
| 277456-EK3 | Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch (USA) |
| Reference | Meaning |
|---|---|
| 134604-1 | 3/9 Design control — primary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp |
NSN 5930-01-084-6590 is a Switch,rotary, manufactured by Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch, classified under FSC 5930, Switches. Status: active.
NSN 5930-01-084-6590 has 1 manufacturer part number on file: 277456-EK3 (Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch).
Key specifications for 277456-EK3: Shaft Type: ROUND, FLATTED SINGLE ACTUATOR; Shaft Diameter: 0.250 INCHES NOMINAL SINGLE ACTUATOR IN; Switch Contact Basic Design: NONPILE-UP SYMMETRICAL; Terminal Type: TAB, SOLDER LUG. 29 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.