The Switch,rotary, cataloged under National Stock Number 5930-01-037-6645, 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 1 manufacturer part number 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5930-01-037-6645 |
| Primary Part Number | 2J12-B-3-2-DK-11 |
| 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 |
| Terminal Type | TAB, SOLDER LUG |
| Mounting Facility Pattern | TWO POSITION IN-LINE SINGLE MOUNTING FACILITY |
| First Flat Length | 0.250 INCHES NOMINAL SINGLE ACTUATOR IN |
| Precious Material | GOLD AND SILVER |
| Contact Load Current Rating | 1.0 AMPERES RESISTIVE LOAD DC AT SEA LEVEL |
| Mounting Method | THREADED HOLE(S) SINGLE MOUNTING FACILITY |
| Pole Quantity | 3 EACH SECTION REAR |
| Style Designator | TAP, SQUARE FRAME |
| Individual Section Quantity | 3 |
| Nominal Thread Size | 0.138 INCHES SINGLE MOUNTING FACILITY IN |
| Shaft Length | 1.125 INCHES NOMINAL SINGLE ACTUATOR IN |
| Switch Actuator Stop Device Type | FIXED STOP SINGLE ACTUATOR |
| Contact Switching Action | BREAKS BEFORE MAKES EACH SECTION REAR |
| Contact Voltage Rating in Volts | 30.0 DC AT SEA LEVEL |
| Precious Material and Location | CONTACT SURFACE GOLD AND TERMINALS SILVER |
| Operating Temp Range | -40.0 TO 85.0 CELSIUS DEGC |
| Thread Class | 2B SINGLE MOUNTING FACILITY |
| Switch Actuator Positioning Increment | 30.0 DEGREES SINGLE ACTUATOR |
| Thread Quantity Per Inch | 32 SINGLE MOUNTING FACILITY |
| Switch Actuator Indexing Position Quantity | 2 SINGLE ACTUATOR |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY |
| Flat Height | 0.218 INCHES NOMINAL SINGLE ACTUATOR IN |
| Longest Horizontal Distance Between Mounting Centers | 1.375 INCHES NOMINAL SINGLE MOUNTING FACILITY IN |
| Throw Quantity | 2 EACH SECTION REAR |
| 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 |
|---|---|
| 2J12-B-3-2-DK-11 PRIMARY | Shallcross Inc (USA) |
| Reference | Meaning |
|---|---|
| G376447-4 | 5/9 Secondary reference Lucent Technologies Inc Advanced Technology Systems |
| G376447-4 | C/1 Advisory reference — outside the item-of-supply concept Lucent Technologies Inc Dba Federal Marketing Group |
| 2J12B3-2KD11 | C/1 Advisory reference — outside the item-of-supply concept Shallcross Inc |
NSN 5930-01-037-6645 is a Switch,rotary, manufactured by Shallcross Inc, classified under FSC 5930, Switches. Status: active.
NSN 5930-01-037-6645 has 1 manufacturer part number on file: 2J12-B-3-2-DK-11 (Shallcross Inc).
Key specifications for 2J12-B-3-2-DK-11: Shaft Type: ROUND, FLATTED SINGLE ACTUATOR; Overall Height: 1.750 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.