The Switch,rotary, cataloged under National Stock Number 5930-00-174-5898, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Namco Controls Div of Acme-Cleveland Corp. Government technical data includes 25 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 5930-00-174-5898 |
| Primary Part Number | EA190-00055 |
| Item Name | Switch,rotary |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Namco Controls Div of Acme-Cleveland Corp |
| Status | ACTIVE |
| Shaft Type | RECTANGULAR/SQUARE, THREADED HOLE SINGLE ACTUATOR |
| Switch Contact Basic Design | NONPILE-UP SYMMETRICAL |
| Terminal Type | TAB W/SCREW |
| Mounting Facility Pattern | ISOSCELES TRIANGLE SINGLE MOUNTING FACILITY |
| Contact Load Current Rating | 30.0 AMPERES RESISTIVE LOAD DC AT SEA LEVEL |
| Contact Load Current Rating | 30.0 AMPERES RESISTIVE LOAD AC AT SEA LEVEL |
| Mounting Method | BASE SINGLE MOUNTING FACILITY |
| Unthreaded Mounting Hole Diameter | 0.531 INCHES NOMINAL SINGLE MOUNTING FACILITY IN |
| Pole Quantity | 1 SINGLE SECTION FRONT |
| Longest Vertical Distance Between Mounting Centers | 6.188 INCHES NOMINAL SINGLE MOUNTING FACILITY IN |
| Individual Section Quantity | 1 |
| Shortest Horizontal Distance Between Mounting Centers | 1.062 INCHES NOMINAL SINGLE MOUNTING FACILITY IN |
| Knob Manufacturer Code | 42337 |
| Features Provided | ACTUATOR KNOB AND METALLIC INCLOSURE |
| Shaft Length | 0.750 INCHES NOMINAL SINGLE ACTUATOR IN |
| Knob Manufacturer Part Number | D1386 |
| Contact Switching Action | BREAKS BEFORE MAKES SINGLE SECTION FRONT |
| Contact Voltage Rating in Volts | 500.0 DC AT SEA LEVEL |
| Contact Voltage Rating in Volts | 500.0 AC AT SEA LEVEL |
| Test Data Document | 81349-MIL-C-2212 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 | 20.0 DEGREES SINGLE ACTUATOR |
| Switch Actuator Indexing Position Quantity | 2 SINGLE ACTUATOR |
| Longest Horizontal Distance Between Mounting Centers | 1.000 INCHES NOMINAL SINGLE MOUNTING FACILITY IN |
| Throw Quantity | 1 SINGLE SECTION FRONT |
| Hazardous Locations/environmental Protection | WATERTIGHT |
| 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 |
|---|---|
| EA190-00055 | Namco Controls Div of Acme-Cleveland Corp (USA) |
| Reference | Meaning |
|---|---|
| D1375 | 5/9 Secondary reference Acme-Cleveland Corp National Acme Div |
| D1580 | 3/9 Design control — primary reference Acme-Cleveland Corp National Acme Div |
| EA190-00055 | 5/9 Secondary reference Namco Controls Corp |
| D1580 | 5/9 Secondary reference Namco Controls Corp |
| EA190-00055 | 5/9 Secondary reference Acme-Cleveland Corp National Acme Div |
NSN 5930-00-174-5898 is a Switch,rotary, manufactured by Namco Controls Div of Acme-Cleveland Corp, classified under FSC 5930, Switches. Status: active.
NSN 5930-00-174-5898 has 1 manufacturer part number on file: EA190-00055 (Namco Controls Div of Acme-Cleveland Corp).
3 possible matches (shared part number, not a government interchangeability claim): 6130-00-635-8878, 5331-01-159-1078, 5120-01-222-2037. Verify interchangeability with system specifications before substitution.
Key specifications for EA190-00055: Shaft Type: RECTANGULAR/SQUARE, THREADED HOLE SINGLE ACTUATOR; Overall Height: 10.125 INCHES NOMINAL IN; Switch Contact Basic Design: NONPILE-UP SYMMETRICAL; Terminal Type: TAB W/SCREW. 25 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.