The Switch,rotary, cataloged under National Stock Number 5930-01-290-7140, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Dynamic Ems Ltd. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5930-01-290-7140 |
| Primary Part Number | 57M22-03-1-16N-F |
| Item Name | Switch,rotary |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Dynamic Ems Ltd |
| Status | ACTIVE |
| Shaft Type | ROUND, FLATTED SINGLE ACTUATOR |
| Shaft Diameter | 0.248 INCHES MINIMUM AND 0.251 INCHES MAXIMUM SINGLE ACTUATOR IN |
| Switch Contact Basic Design | NONPILE-UP SYMMETRICAL |
| Terminal Type | TAB, SOLDER LUG |
| Overall Diameter | 1.190 INCHES NOMINAL IN |
| First Flat Length | 0.250 INCHES NOMINAL SINGLE ACTUATOR IN |
| Rotor Through Connection Quantity | 1 EACH SECTION |
| Contact Load Current Rating | 0.5 AMPERES RESISTIVE LOAD AC AT SEA LEVEL |
| Contact Load Current Rating | 0.2 AMPERES INDUCTIVE LOAD DC AT SEA LEVEL |
| Mounting Method | THREADED BUSHING SINGLE MOUNTING FACILITY |
| Thread Length | 0.437 INCHES NOMINAL SINGLE MOUNTING FACILITY IN |
| Pole Quantity | 1 EACH SECTION FRONT |
| Style Designator | TAP, CIRCULAR, BUSHING MOUNT |
| Individual Section Quantity | 3 |
| Nonturn Device Type | SLOTTED BUSHING AT 4:30 OCLOCK |
| Nominal Thread Size | 0.375 INCHES SINGLE MOUNTING FACILITY IN |
| Shaft Length | 0.437 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 | 115.0 AC AT SEA LEVEL |
| Contact Voltage Rating in Volts | 30.0 DC AT SEA LEVEL |
| Precious Material and Location | TERMINAL SURFACES; ROTOR CONTACT SILVER AND TERMINAL AND ROTOR CONTACT SURFACES GOLD |
| Thread Class | 2A SINGLE MOUNTING FACILITY A |
| Switch Actuator Positioning Increment | 22.5 DEGREES SINGLE ACTUATOR |
| Thread Quantity Per Inch | 32 SINGLE MOUNTING FACILITY |
| Switch Actuator Indexing Position Quantity | 16 SINGLE ACTUATOR |
| Thread Series Designator | UNEF SINGLE MOUNTING FACILITY |
| Flat Height | 0.219 INCHES NOMINAL SINGLE ACTUATOR IN |
| Throw Quantity | 16 EACH SECTION REAR |
| 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 |
|---|---|
| 57M22-03-1-16N-F | Dynamic Ems Ltd (GBR) |
| Reference | Meaning |
|---|---|
| 57M22-03-1-16N-F | 3/2 Design control — primary reference U.S. Government activity |
NSN 5930-01-290-7140 is a Switch,rotary, manufactured by Dynamic Ems Ltd, classified under FSC 5930, Switches. Status: active.
NSN 5930-01-290-7140 has 1 manufacturer part number on file: 57M22-03-1-16N-F (Dynamic Ems Ltd).
Key specifications for 57M22-03-1-16N-F: Shaft Type: ROUND, FLATTED SINGLE ACTUATOR; Shaft Diameter: 0.248 INCHES MINIMUM AND 0.251 INCHES MAXIMUM 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.