The Switch,rotary, cataloged under National Stock Number 5930-01-256-1546, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. Government technical data includes 26 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5930-01-256-1546 |
| Item Name | Switch,rotary |
| FSC / FSG | 5930 / 59 — Switches |
| Status | ACTIVE |
| Switch Contact Basic Design | NONPILE-UP NONSYMMETRICAL |
| Terminal Type | SCREW |
| Mounting Facility Pattern | FOUR POSITION CIRCULAR SECOND MOUNTING FACILITY |
| Mounting Facility Pattern | FOUR POSITION RECTANGULAR FIRST MOUNTING FACILITY |
| Mounting Facility Circle Radius | 0.905 INCHES NOMINAL SECOND MOUNTING FACILITY IN |
| Precious Material | SILVER |
| Contact Load Current Rating | 7.5 AMPERES RESISTIVE LOAD AC AT SEA LEVEL |
| Mounting Method | THREADED STUD(S) SECOND MOUNTING FACILITY |
| Mounting Method | THREADED HOLE(S) AND BRACKET(S) FIRST MOUNTING FACILITY |
| Thread Length | 0.438 INCHES NOMINAL SECOND MOUNTING FACILITY IN |
| Style Designator | TAP, SQUARE FRAME |
| Longest Vertical Distance Between Mounting Centers | 2.300 INCHES NOMINAL SECOND MOUNTING FACILITY IN |
| Individual Section Quantity | 9 |
| Features Provided | ACTUATOR KNOB |
| Nominal Thread Size | 0.190 INCHES SECOND MOUNTING FACILITY IN |
| Nominal Thread Size | 0.190 INCHES FIRST MOUNTING FACILITY IN |
| Specification/standard Data | 81349-MIL-S-21604/4 GOVERNMENT SPECIFICATION |
| Contact Voltage Rating in Volts | 125.0 AC AT SEA LEVEL |
| Precious Material and Location | ROTOR AND STATOR SURFACES SILVER |
| Thread Class | 2A SECOND MOUNTING FACILITY A |
| Thread Class | 2B FIRST MOUNTING FACILITY |
| Test Data Document | 81349-MIL-S-21604 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). |
| Switch Actuator Positioning Increment | 30.0 DEGREES SINGLE ACTUATOR |
| Thread Quantity Per Inch | 24 FIRST MOUNTING FACILITY |
| Switch Actuator Indexing Position Quantity | 12 SINGLE ACTUATOR |
| Thread Series Designator | UNF SECOND MOUNTING FACILITY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 26509G | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| MIL-DTL-21604/4 | 4/1 Identification reference U.S. Government activity |
| S5JM9 | 2/2 Government specification standardization U.S. Government activity |
| MIL-S-21604/4 | 5/9 Secondary reference U.S. Government activity |
NSN 5930-01-256-1546 is a Switch,rotary, classified under FSC 5930, Switches. Status: active.
Key specifications for 5930-01-256-1546: Overall Height: 2.810 INCHES NOMINAL IN; Switch Contact Basic Design: NONPILE-UP NONSYMMETRICAL; Terminal Type: SCREW; Mounting Facility Pattern: FOUR POSITION CIRCULAR SECOND MOUNTING FACILITY. 26 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.