The Switch,rotary, cataloged under National Stock Number 5930-00-548-7958, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Howley Robert S Co. Government technical data includes 22 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5930-00-548-7958 |
| Primary Part Number | 81726WTA |
| Item Name | Switch,rotary |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Howley Robert S Co |
| Status | ACTIVE |
| Shaft Type | ROUND, FLATTED SINGLE ACTUATOR |
| Shaft Diameter | 0.249 INCHES NOMINAL SINGLE ACTUATOR IN |
| Switch Contact Basic Design | NONPILE-UP SYMMETRICAL |
| Terminal Type | TAB W/SCREW |
| First Flat Length | 0.438 INCHES NOMINAL SINGLE ACTUATOR IN |
| Contact Load Current Rating | 3.0 AMPERES RESISTIVE LOAD DC AT SEA LEVEL |
| Contact Load Current Rating | 3.0 AMPERES RESISTIVE LOAD AC AT SEA LEVEL |
| Mounting Method | THREADED BUSHING SINGLE MOUNTING FACILITY |
| Thread Length | 0.312 INCHES NOMINAL SINGLE MOUNTING FACILITY IN |
| Pole Quantity | 2 SINGLE SECTION FRONT |
| Individual Section Quantity | 1 |
| Nominal Thread Size | 0.375 INCHES SINGLE MOUNTING FACILITY IN |
| Shaft Length | 0.812 INCHES NOMINAL SINGLE ACTUATOR IN |
| Contact Switching Action | BREAKS BEFORE MAKES SINGLE SECTION FRONT |
| Contact Voltage Rating in Volts | 250.0 DC AT SEA LEVEL |
| Contact Voltage Rating in Volts | 250.0 AC AT SEA LEVEL |
| Switch Actuator Positioning Increment | 45.0 DEGREES SINGLE ACTUATOR |
| Switch Actuator Indexing Position Quantity | 2 SINGLE ACTUATOR |
| Thread Series Designator | UNEF SINGLE MOUNTING FACILITY |
| Flat Height | 0.217 INCHES NOMINAL SINGLE ACTUATOR 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 |
|---|---|
| 81726WTA PRIMARY | Howley Robert S Co (USA) |
| Reference | Meaning |
|---|---|
| 81726WTA | 3/9 Design control — primary reference Cooper Industries Inc Cooper Distribution Equipment Div |
NSN 5930-00-548-7958 is a Switch,rotary, manufactured by Howley Robert S Co, classified under FSC 5930, Switches. Status: active.
NSN 5930-00-548-7958 has 1 manufacturer part number on file: 81726WTA (Howley Robert S Co).
Key specifications for 81726WTA: Shaft Type: ROUND, FLATTED SINGLE ACTUATOR; Overall Height: 1.750 INCHES NOMINAL IN; Shaft Diameter: 0.249 INCHES NOMINAL SINGLE ACTUATOR IN; Switch Contact Basic Design: NONPILE-UP SYMMETRICAL. 22 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.