The Switch,rotary, cataloged under National Stock Number 5930-01-045-4337, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Meggitt Safety Systems Inc. Government technical data includes 24 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5930-01-045-4337 |
| Primary Part Number | 3491PIECE27 |
| Item Name | Switch,rotary |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Meggitt Safety Systems Inc |
| Status | ACTIVE |
| Switch Contact Basic Design | NONPILE-UP SYMMETRICAL |
| Terminal Type | TAB, SOLDER LUG |
| Mounting Facility Pattern | TWO POSITION IN-LINE SINGLE MOUNTING FACILITY |
| Overall Diameter | 1.500 INCHES NOMINAL IN |
| Detent Rotational Torque Range | +0.500 TO 5.000 INCH-POUNDS SINGLE ACTUATOR IN |
| Contact Load Current Rating | 5.0 AMPERES RESISTIVE LOAD AC AT SEA LEVEL |
| Contact Load Current Rating | 5.0 AMPERES RESISTIVE LOAD AND 2.5 AMPERES INDUCTIVE LOAD DC AT SEA LEVEL |
| Mounting Method | THREADED HOLE(S) SINGLE MOUNTING FACILITY |
| Pole Quantity | 2 SINGLE SECTION REAR |
| Style Designator | MINIATURE, PIN MOUNT |
| Individual Section Quantity | 1 |
| Nominal Thread Size | 0.138 INCHES SINGLE MOUNTING FACILITY IN |
| Switch Actuator Stop Device Type | FIXED STOP SINGLE ACTUATOR |
| Contact Switching Action | BREAKS BEFORE MAKES SINGLE SECTION REAR |
| Contact Voltage Rating in Volts | 115.0 AC AT SEA LEVEL |
| Contact Voltage Rating in Volts | 28.0 DC AT SEA LEVEL |
| Thread Class | 2B SINGLE MOUNTING FACILITY |
| Switch Actuator Positioning Increment | 45.0 DEGREES SINGLE ACTUATOR |
| Thread Quantity Per Inch | 32 SINGLE MOUNTING FACILITY |
| Switch Actuator Indexing Position Quantity | 2 SINGLE ACTUATOR |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY |
| Longest Horizontal Distance Between Mounting Centers | 1.250 INCHES NOMINAL SINGLE MOUNTING FACILITY IN |
| Throw Quantity | 2 SINGLE SECTION REAR |
| Hazardous Locations/environmental Protection | DUSTPROOF |
| 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 |
|---|---|
| 3491PIECE27 | Meggitt Safety Systems Inc (USA) |
| 40-40860 | Meggitt Safety Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| 9-1957D-1N2 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5930-01-045-4337 is a Switch,rotary, manufactured by Meggitt Safety Systems Inc, classified under FSC 5930, Switches. Status: active.
NSN 5930-01-045-4337 has 2 manufacturer part numbers on file: 3491PIECE27 (Meggitt Safety Systems Inc), 40-40860 (Meggitt Safety Systems Inc).
Key specifications for 3491PIECE27: Switch Contact Basic Design: NONPILE-UP SYMMETRICAL; Terminal Type: TAB, SOLDER LUG; Mounting Facility Pattern: TWO POSITION IN-LINE SINGLE MOUNTING FACILITY; Overall Diameter: 1.500 INCHES NOMINAL IN. 24 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.