The Switch,rotary, cataloged under National Stock Number 5930-01-112-5487, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Industrial Research and Development Inc. 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5930-01-112-5487 |
| Primary Part Number | 28AS7-1 |
| Item Name | Switch,rotary |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Industrial Research and Development Inc |
| Status | ACTIVE |
| Shaft Type | ROUND, FLATTED SINGLE ACTUATOR |
| Shaft Diameter | 0.250 INCHES NOMINAL SINGLE ACTUATOR IN |
| Switch Contact Basic Design | NONPILE-UP NONSYMMETRICAL |
| Terminal Type | TURRET |
| Mounting Facility Pattern | TWO POSITION DIAGONAL SINGLE MOUNTING FACILITY |
| First Flat Length | 0.570 INCHES MINIMUM SINGLE ACTUATOR IN |
| Precious Material | SILVER |
| Contact Load Current Rating | 5.0 AMPERES RESISTIVE LOAD AC AT SEA LEVEL |
| Contact Load Current Rating | 5.0 AMPERES RESISTIVE LOAD AND 3.0 AMPERES INDUCTIVE LOAD DC AT SEA LEVEL |
| Mounting Method | THREADED HOLE(S) SINGLE MOUNTING FACILITY |
| Criticality Code Justification | FEAT |
| Style Designator | IN-LINE, CAM ACTUATED |
| Longest Vertical Distance Between Mounting Centers | 0.592 INCHES NOMINAL SINGLE MOUNTING FACILITY IN |
| Individual Section Quantity | 7 |
| Features Provided | CAM ACTUATED |
| Nominal Thread Size | 0.138 INCHES SINGLE MOUNTING FACILITY IN |
| Shaft Length | 0.700 INCHES NOMINAL SINGLE ACTUATOR IN |
| Switch Actuator Stop Device Type | FIXED STOP SINGLE ACTUATOR |
| Contact Switching Action | BREAKS BEFORE MAKES EACH SECTION IN-LINE |
| Contact Voltage Rating in Volts | 30.0 DC AT SEA LEVEL |
| Contact Voltage Rating in Volts | 250.0 AC AT SEA LEVEL |
| Precious Material and Location | CONTACTS SILVER |
| Cam Actuated Switch Contact Arrangement | 1 POLE, DOUBLE THROW, ONE POSITION MOMENTARY EACH SWITCH EACH SECTION IN-LINE |
| Thread Class | 2A SINGLE MOUNTING FACILITY A |
| Switch Actuator Positioning Increment | 90.0 DEGREES SINGLE ACTUATOR |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 28AS7-1 | Industrial Research and Development Inc (USA) |
| Reference | Meaning |
|---|---|
| X35715-28AS | 5/9 Secondary reference U.S. Government activity |
| 17-13004-1 | 3/9 Design control — primary reference U.S. Government activity |
| 17-13004-1 | C/1 Advisory reference — outside the item-of-supply concept Textron Systems Corporation Dba Textron Systems Corp |
| 28AS7-1 | 5/9 Secondary reference U.S. Government activity |
NSN 5930-01-112-5487 is a Switch,rotary, manufactured by Industrial Research and Development Inc, classified under FSC 5930, Switches. Status: active.
NSN 5930-01-112-5487 has 1 manufacturer part number on file: 28AS7-1 (Industrial Research and Development Inc).
Key specifications for 28AS7-1: Shaft Type: ROUND, FLATTED SINGLE ACTUATOR; Overall Height: 1.530 INCHES NOMINAL IN; Shaft Diameter: 0.250 INCHES NOMINAL SINGLE ACTUATOR IN; Switch Contact Basic Design: NONPILE-UP NONSYMMETRICAL. 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.