The Switch,rotary, cataloged under National Stock Number 5930-00-658-3867, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Electro Switch Corp. Dba Oak Grisgsby 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government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 | 5930-00-658-3867 |
| Primary Part Number | 70378MF4 |
| Item Name | Switch,rotary |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch |
| Status | ACTIVE |
| Shaft Type | ROUND, FLATTED SECOND ACTUATOR |
| Shaft Type | ROUND, HOLLOWED FIRST ACTUATOR |
| Shaft Diameter | 0.248 INCHES MINIMUM AND 0.250 INCHES MAXIMUM FIRST ACTUATOR IN |
| Shaft Diameter | 0.248 INCHES MINIMUM AND 0.250 INCHES MAXIMUM SECOND ACTUATOR IN |
| Switch Contact Basic Design | NONPILE-UP SYMMETRICAL |
| Terminal Type | TAB, SOLDER LUG |
| First Flat Length | 0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM SECOND ACTUATOR IN |
| Detent Rotational Torque Range | +20.000 TO 35.000 INCH-OUNCES FIRST ACTUATOR IN |
| Detent Rotational Torque Range | +40.000 TO 60.000 INCH-OUNCES SECOND ACTUATOR IN |
| Precious Material | SILVER |
| Contact Load Current Rating | 0.5 AMPERES RESISTIVE LOAD AC AT SEA LEVEL |
| Contact Load Current Rating | 1.0 AMPERES RESISTIVE LOAD DC AT SEA LEVEL |
| Mounting Method | THREADED BUSHING SINGLE MOUNTING FACILITY |
| Thread Length | 0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM SINGLE MOUNTING FACILITY IN |
| Pole Quantity | 1 EACH SECTION FRONT |
| Pole Quantity | 1 SECOND SECTION REAR |
| Pole Quantity | 1 FOURTH SECTION REAR |
| Style Designator | CIRCULAR WAFER, BUSHING MOUNT |
| Individual Section Quantity | 4 |
| Nominal Thread Size | 0.375 INCHES SINGLE MOUNTING FACILITY IN |
| Shaft Length | 0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM FIRST ACTUATOR IN |
| Shaft Length | 0.870 INCHES MINIMUM AND 0.880 INCHES MAXIMUM SECOND ACTUATOR IN |
| Switch Actuator Stop Device Type | FIXED STOP FIRST ACTUATOR |
| Contact Switching Action | MAKES BEFORE BREAKS EACH SECTION FRONT |
| Contact Switching Action | MAKES BEFORE BREAKS FOURTH SECTION REAR |
| Contact Switching Action | MAKES BEFORE BREAKS THIRD SECTION REAR |
| Contact Switching Action | MAKES BEFORE BREAKS SECOND 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 |
|---|---|
| 70378MF4 | Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch (USA) |
| Reference | Meaning |
|---|---|
| 70378MF4 | 3/9 Design control — primary reference Nu-Film Products Co |
| 18578 | 5/9 Secondary reference Cessna Aircraft Co Arc Avionics Div |
NSN 5930-00-658-3867 is a Switch,rotary, manufactured by Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch, classified under FSC 5930, Switches. Status: active.
NSN 5930-00-658-3867 has 1 manufacturer part number on file: 70378MF4 (Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch).
5 possible matches (shared part number, not a government interchangeability claim): 6145-00-838-6613, 5950-00-928-1139, 5940-01-159-8556. Verify interchangeability with system specifications before substitution.
Key specifications for 70378MF4: Shaft Type: ROUND, FLATTED SECOND ACTUATOR; Shaft Type: ROUND, HOLLOWED FIRST ACTUATOR; Overall Height: 2.307 INCHES MINIMUM AND 2.317 INCHES MAXIMUM IN; Shaft Diameter: 0.248 INCHES MINIMUM AND 0.250 INCHES MAXIMUM FIRST ACTUATOR IN. 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.