The Switch,rotary, cataloged under National Stock Number 5930-01-040-7551, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Shallcross Inc. Government technical data includes 27 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5930-01-040-7551 |
| Primary Part Number | 338763-4 |
| Item Name | Switch,rotary |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Shallcross Inc |
| Status | ACTIVE |
| Shaft Type | ROUND, FLATTED SINGLE ACTUATOR |
| Shaft Diameter | 0.250 INCHES NOMINAL SINGLE ACTUATOR IN |
| Switch Contact Basic Design | NONPILE-UP SYMMETRICAL |
| Nonturn Device Radius | 0.531 INCHES NOMINAL AT 12:00 OCLOCK IN |
| Terminal Type | TAB, SOLDER LUG |
| Mounting Facility Pattern | TWO POSITION IN-LINE SECOND MOUNTING FACILITY |
| First Flat Length | 0.563 INCHES NOMINAL SINGLE ACTUATOR IN |
| Precious Material | GOLD |
| Contact Load Current Rating | 500.0 MILLIAMPERES RESISTIVE LOAD AC AT SEA LEVEL |
| Contact Load Current Rating | 10.0 AMPERES RESISTIVE LOAD DC AT SEA LEVEL |
| Mounting Method | THREADED BUSHING FIRST MOUNTING FACILITY |
| Mounting Method | THREADED HOLE(S) SECOND MOUNTING FACILITY |
| Thread Length | 0.312 INCHES NOMINAL FIRST MOUNTING FACILITY IN |
| Pole Quantity | 1 EACH SECTION REAR |
| Style Designator | SQUARE WAFER, PANEL MOUNT |
| Individual Section Quantity | 16 |
| Nonturn Device Type | TAB AT 12:00 OCLOCK |
| Features Provided | METALLIC INCLOSURE |
| Nominal Thread Size | 0.375 INCHES FIRST MOUNTING FACILITY IN |
| Nominal Thread Size | 0.164 INCHES SECOND MOUNTING FACILITY IN |
| Shaft Length | 0.688 INCHES NOMINAL SINGLE ACTUATOR IN |
| Contact Switching Action | MAKES BEFORE BREAKS EACH SECTION REAR |
| Contact Voltage Rating in Volts | 115.0 AC AT SEA LEVEL |
| Contact Voltage Rating in Volts | 30.0 DC AT SEA LEVEL |
| Precious Material and Location | TERMINALS GOLD AND CONTACT SURFACES GOLD |
| Operating Temp Range | -65.0 TO 125.0 CELSIUS DEGC |
| Thread Class | 2A FIRST MOUNTING FACILITY A |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
NSN 5930-01-040-7551 is a Switch,rotary, manufactured by Shallcross Inc, classified under FSC 5930, Switches. Status: active.
NSN 5930-01-040-7551 has 2 manufacturer part numbers on file: 338763-4 (Shallcross Inc), 338763-4 (Lockheed Martin Corporation Div Rms - Mitchel Field).
Key specifications for 338763-4: Shaft Type: ROUND, FLATTED SINGLE ACTUATOR; Overall Height: 3.126 INCHES NOMINAL IN; Shaft Diameter: 0.250 INCHES NOMINAL SINGLE ACTUATOR IN; Switch Contact Basic Design: NONPILE-UP SYMMETRICAL. 27 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.