The Switch,rotary, cataloged under National Stock Number 5930-01-186-4172, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Electro Switch Corp Div Electroswitch. Government technical data includes 27 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 7 items share a part number with this NSN in the catalog (possible match — not a government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 | 5930-01-186-4172 |
| Primary Part Number | M3786/40-0267 |
| Item Name | Switch,rotary |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Electro Switch Corp 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 |
| Nonturn Device Radius | 0.531 INCHES NOMINAL AT 12:00 OCLOCK IN |
| Terminal Type | TAB, SOLDER LUG |
| First Flat Length | 0.250 INCHES NOMINAL SINGLE ACTUATOR IN |
| Detent Rotational Torque Range | +1.500 TO 6.000 INCH-POUNDS SINGLE ACTUATOR IN |
| Contact Load Current Rating | 50.0 MILLIAMPERES RESISTIVE LOAD HIGHEST AC VOLTAGE RATING AT SEA LEVEL |
| Contact Load Current Rating | 500.0 MILLIAMPERES RESISTIVE LOAD AND 50.0 MILLIAMPERES INDUCTIVE LOAD DC AT SEA LEVEL |
| Contact Load Current Rating | 125.0 MILLIAMPERES RESISTIVE LOAD LOWEST AC VOLTAGE RATING AT SEA LEVEL |
| Mounting Method | THREADED BUSHING SINGLE MOUNTING FACILITY |
| Thread Length | 0.312 INCHES NOMINAL SINGLE MOUNTING FACILITY IN |
| Pole Quantity | 1 SINGLE SECTION REAR |
| Style Designator | SQUARE WAFER, PANEL MOUNT |
| Individual Section Quantity | 1 |
| Nonturn Device Type | TAB AT 12:00 OCLOCK |
| Nominal Thread Size | 0.375 INCHES SINGLE MOUNTING FACILITY IN |
| Shaft Length | 0.688 INCHES NOMINAL SINGLE ACTUATOR IN |
| Specification/standard Data | 81349-MIL-S-3786/40 GOVERNMENT SPECIFICATION |
| Contact Switching Action | MAKES BEFORE BREAKS SINGLE SECTION REAR |
| 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 |
| Operating Temp Range | -65.0 TO 125.0 CELSIUS DEGC |
| Thread Class | 2A SINGLE MOUNTING FACILITY A |
| Test Data Document | 81349-MIL-S-3786 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 | 15.0 DEGREES SINGLE ACTUATOR |
| 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 |
|---|---|
| M3786/40-0267 | Electro Switch Corp Div Electroswitch (USA) |
| Reference | Meaning |
|---|---|
| MIL-DTL-3786/40 | 4/1 Identification reference U.S. Government activity |
| MIL-S-3786/40 | 5/9 Secondary reference U.S. Government activity |
| M3786/40-0267 | 5/9 Secondary reference U.S. Government activity |
| M3786/40-267 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| SR402E00A24-1-R | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 5930-01-186-4172 is a Switch,rotary, manufactured by Electro Switch Corp Div Electroswitch, classified under FSC 5930, Switches. Status: active.
NSN 5930-01-186-4172 has 1 manufacturer part number on file: M3786/40-0267 (Electro Switch Corp Div Electroswitch).
7 possible matches (shared part number, not a government interchangeability claim): 5930-01-240-9522, 5930-01-265-7979, 5930-01-265-7980. Verify interchangeability with system specifications before substitution.
Key specifications for M3786/40-0267: Shaft Type: ROUND, FLATTED SINGLE ACTUATOR; Overall Height: 2.050 INCHES NOMINAL IN; Shaft Diameter: 0.250 INCHES NOMINAL 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.