The Switch,rotary, cataloged under National Stock Number 5930-00-642-9148, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Ward Leonard Ct Llc. Government technical data includes 24 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5930-00-642-9148 |
| Primary Part Number | 50055KPCSP6A |
| Item Name | Switch,rotary |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Ward Leonard Ct Llc |
| Status | ACTIVE |
| Shaft Type | ROUND SINGLE ACTUATOR |
| Shaft Diameter | 0.250 INCHES NOMINAL SINGLE ACTUATOR IN |
| Switch Contact Basic Design | NONPILE-UP SYMMETRICAL |
| Terminal Type | TAB W/SCREW |
| Mounting Facility Pattern | FOUR POSITION RECTANGULAR SINGLE MOUNTING FACILITY |
| Contact Load Current Rating | 15.0 AMPERES RESISTIVE LOAD HIGHEST AC VOLTAGE RATING AT SEA LEVEL |
| Contact Load Current Rating | 10.0 AMPERES RESISTIVE LOAD LOWEST AC VOLTAGE RATING AT SEA LEVEL |
| Mounting Method | BASE SINGLE MOUNTING FACILITY |
| Pole Quantity | 1 SINGLE SECTION FRONT |
| Longest Vertical Distance Between Mounting Centers | 1.625 INCHES NOMINAL SINGLE MOUNTING FACILITY IN |
| Individual Section Quantity | 1 |
| Knob Manufacturer Code | 04009 |
| Features Provided | ACTUATOR KNOB |
| Nominal Thread Size | 0.190 INCHES SINGLE MOUNTING FACILITY IN |
| Shaft Length | 0.250 INCHES NOMINAL SINGLE ACTUATOR IN |
| Contact Switching Action | BREAKS BEFORE MAKES SINGLE SECTION FRONT |
| Contact Voltage Rating in Volts | 250.0 HIGHEST AC VOLTAGE RATING AT SEA LEVEL |
| Contact Voltage Rating in Volts | 125.0 LOWEST AC VOLTAGE RATING AT SEA LEVEL |
| Switch Actuator Positioning Increment | 90.0 DEGREES SINGLE ACTUATOR |
| Thread Quantity Per Inch | 24 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 | 1.625 INCHES NOMINAL SINGLE MOUNTING FACILITY IN |
| Throw Quantity | 1 SINGLE SECTION FRONT |
| 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 |
|---|---|
| 50055KPCSP6A PRIMARY | Ward Leonard Ct Llc (USA) |
| 50055KPC250 PRIMARY | Ward Leonard Ct Llc (USA) |
| 4-769-1 PRIMARY | Ward Leonard Ct Llc (USA) |
| 104-769A PRIMARY | Ward Leonard Ct Llc (USA) |
| Reference | Meaning |
|---|---|
| 81647SH | 5/9 Secondary reference Cooper Industries Inc Cooper Distribution Equipment Div |
| 346-6201-916260ALT2PCSP6A | 3/2 Design control — primary reference U.S. Government activity |
| 346-6201-916260ALT2PC250 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5930-00-642-9148 is a Switch,rotary, manufactured by Ward Leonard Ct Llc, classified under FSC 5930, Switches. Status: active.
NSN 5930-00-642-9148 has 4 manufacturer part numbers on file: 50055KPCSP6A (Ward Leonard Ct Llc), 50055KPC250 (Ward Leonard Ct Llc), 4-769-1 (Ward Leonard Ct Llc), 104-769A (Ward Leonard Ct Llc).
1 possible match (shared part number, not a government interchangeability claim): 5330-01-568-5883. Verify interchangeability with system specifications before substitution.
Key specifications for 50055KPCSP6A: Shaft Type: ROUND SINGLE ACTUATOR; Shaft Diameter: 0.250 INCHES NOMINAL SINGLE ACTUATOR IN; Switch Contact Basic Design: NONPILE-UP SYMMETRICAL; Terminal Type: TAB W/SCREW. 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.