The Switch,rotary, cataloged under National Stock Number 5930-01-031-0490, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Cts Corporation. Government technical data includes 27 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5930-01-031-0490 |
| Primary Part Number | 212T0205N324FN2 |
| Item Name | Switch,rotary |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Cts Corporation |
| Status | ACTIVE |
| Shaft Type | ROUND, FLATTED SINGLE ACTUATOR |
| Shaft Diameter | 0.248 INCHES MINIMUM AND 0.250 INCHES MAXIMUM SINGLE ACTUATOR IN |
| Switch Contact Basic Design | NONPILE-UP SYMMETRICAL |
| Nonturn Device Radius | 0.515 INCHES MINIMUM AND 0.547 INCHES MAXIMUM AT 9:00 OCLOCK IN |
| Terminal Type | TAB, SOLDER LUG |
| First Flat Length | 0.313 INCHES NOMINAL SINGLE ACTUATOR IN |
| Precious Material | SILVER |
| Rotor Through Connection Quantity | 2 SINGLE SECTION |
| Contact Load Current Rating | 1.0 MILLIAMPERES RESISTIVE LOAD DC AT SEA LEVEL |
| Mounting Method | THREADED BUSHING SINGLE MOUNTING FACILITY |
| Thread Length | 0.359 INCHES MINIMUM AND 0.391 INCHES MAXIMUM SINGLE MOUNTING FACILITY IN |
| Pole Quantity | 2 SINGLE SECTION FRONT |
| Style Designator | CIRCULAR WAFER, BUSHING MOUNT |
| Individual Section Quantity | 1 |
| Nonturn Device Type | TAB AT 9:00 OCLOCK |
| Nominal Thread Size | 0.375 INCHES SINGLE MOUNTING FACILITY IN |
| Shaft Length | 0.359 INCHES MINIMUM AND 0.391 INCHES MAXIMUM SINGLE ACTUATOR IN |
| Switch Actuator Stop Device Type | FIXED STOP SINGLE ACTUATOR |
| Contact Switching Action | BREAKS BEFORE MAKES SINGLE SECTION REAR |
| Contact Voltage Rating in Volts | 30.0 DC AT SEA LEVEL |
| Precious Material and Location | CONTACT SURFACES SILVER |
| Thread Class | 2A SINGLE MOUNTING FACILITY A |
| Switch Actuator Positioning Increment | 30.0 DEGREES SINGLE ACTUATOR |
| Switch Actuator Indexing Position Quantity | 5 SINGLE ACTUATOR |
| Thread Series Designator | UNEF SINGLE MOUNTING FACILITY |
| Flat Height | 0.215 INCHES MINIMUM AND 0.221 INCHES MAXIMUM SINGLE ACTUATOR IN |
| Throw Quantity | 5 SINGLE 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 |
|---|---|
| 212T0205N324FN2 | Cts Corp Electromechanical Div (USA) |
| 212T0205N324FN2 PRIMARY | Cts Corporation (USA) |
| Reference | Meaning |
|---|---|
| 211 | 5/9 Secondary reference Cts Corp of California Dba Cts Electronics Corp Paso Robles Div Electromechanical Group |
| 215-T212-1 | 5/9 Secondary reference Cts Corp Berne Div Thick Film Products Group |
| 24722-2 | 5/9 Secondary reference Transistor Devices Inc Div Astrodyne Tdi High Power Business Unit |
| 24722-2 | 5/9 Secondary reference Cts Corp of California Dba Cts Electronics Corp Paso Robles Div Electromechanical Group |
| 212T0205N324FN2 | 3/9 Design control — primary reference Cts Corp Berne Div Thick Film Products Group |
NSN 5930-01-031-0490 is a Switch,rotary, manufactured by Cts Corporation, classified under FSC 5930, Switches. Status: active.
NSN 5930-01-031-0490 has 2 manufacturer part numbers on file: 212T0205N324FN2 (Cts Corp Electromechanical Div), 212T0205N324FN2 (Cts Corporation).
2 possible matches (shared part number, not a government interchangeability claim): 2530-01-210-2751, 4940-01-337-2913. Verify interchangeability with system specifications before substitution.
Key specifications for 212T0205N324FN2: Shaft Type: ROUND, FLATTED SINGLE ACTUATOR; Overall Height: 1.296 INCHES MINIMUM AND 1.328 INCHES MAXIMUM IN; Shaft Diameter: 0.248 INCHES MINIMUM AND 0.250 INCHES MAXIMUM SINGLE ACTUATOR IN; Switch Contact Basic Design: NONPILE-UP SYMMETRICAL. 27 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.