The Switch,rotary, cataloged under National Stock Number 5930-00-581-4272, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is William S Guttenberg Dba Wilco Electric Company. Government technical data includes 20 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5930-00-581-4272 |
| Primary Part Number | A21199 |
| Item Name | Switch,rotary |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | William S Guttenberg Dba Wilco Electric Company |
| Status | ACTIVE |
| Shaft Type | ROUND, FLATTED, THREADED HOLE SINGLE ACTUATOR |
| Shaft Diameter | 0.375 INCHES NOMINAL SINGLE ACTUATOR IN |
| Switch Contact Basic Design | NONPILE-UP SYMMETRICAL |
| Terminal Type | TAB W/SCREW |
| Mounting Facility Pattern | FOUR POSITION CIRCULAR SINGLE MOUNTING FACILITY |
| First Flat Length | 0.500 INCHES NOMINAL SINGLE ACTUATOR IN |
| Mounting Facility Circle Radius | 1.609 INCHES NOMINAL SINGLE MOUNTING FACILITY IN |
| Contact Load Current Rating | 30.0 AMPERES RESISTIVE LOAD AC AT SEA LEVEL |
| Individual Section Quantity | 12 |
| Knob Manufacturer Code | 82121 |
| Features Provided | ACTUATOR KNOB |
| Nominal Thread Size | 0.250 INCHES SINGLE MOUNTING FACILITY IN |
| Shaft Length | 0.875 INCHES NOMINAL SINGLE ACTUATOR IN |
| Contact Switching Action | MAKES BEFORE BREAKS, BREAKS BEFORE MAKES EACH SECTION FRONT |
| Contact Voltage Rating in Volts | 500.0 AC AT SEA LEVEL |
| Switch Actuator Positioning Increment | 90.0 DEGREES SINGLE ACTUATOR |
| Thread Quantity Per Inch | 20 SINGLE MOUNTING FACILITY |
| Switch Actuator Indexing Position Quantity | 3 SINGLE ACTUATOR |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY |
| Flat Height | 0.312 INCHES NOMINAL SINGLE ACTUATOR IN |
| 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 |
|---|---|
| A21199 PRIMARY | William S Guttenberg Dba Wilco Electric Company (USA) |
| Reference | Meaning |
|---|---|
| 123906LK | 3/2 Design control — primary reference U.S. Government activity |
| A21199 | 5/9 Secondary reference Bogue Electric Manufacturing Co |
| A21199 | C/1 Advisory reference — outside the item-of-supply concept Bogue Systems Inc Dba Bogue Systems Inc |
| C30417 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5930-00-581-4272 is a Switch,rotary, manufactured by William S Guttenberg Dba Wilco Electric Company, classified under FSC 5930, Switches. Status: active.
NSN 5930-00-581-4272 has 1 manufacturer part number on file: A21199 (William S Guttenberg Dba Wilco Electric Company).
Key specifications for A21199: Shaft Type: ROUND, FLATTED, THREADED HOLE SINGLE ACTUATOR; Overall Height: 4.125 INCHES NOMINAL IN; Shaft Diameter: 0.375 INCHES NOMINAL SINGLE ACTUATOR IN; Switch Contact Basic Design: NONPILE-UP SYMMETRICAL. 20 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.