The Switch,rotary, cataloged under National Stock Number 5930-00-770-8420, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Viking Technologies, Ltd.. Government technical data includes 23 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5930-00-770-8420 |
| Primary Part Number | B19624-3 |
| Item Name | Switch,rotary |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Viking Technologies, Ltd. |
| Status | ACTIVE |
| Shaft Type | ROUND, V FLATTED SINGLE ACTUATOR |
| Shaft Diameter | 0.250 INCHES NOMINAL SINGLE ACTUATOR IN |
| Switch Contact Basic Design | NONPILE-UP SYMMETRICAL |
| Terminal Type | TAB, SOLDER LUG |
| First Flat Length | 0.406 INCHES NOMINAL SINGLE ACTUATOR IN |
| Contact Load Current Rating | 2.0 AMPERES RESISTIVE LOAD HIGHEST AC VOLTAGE RATING AT SEA LEVEL |
| Contact Load Current Rating | 1.0 AMPERES RESISTIVE LOAD LOWEST AC VOLTAGE RATING AT SEA LEVEL |
| Mounting Method | THREADED BUSHING SINGLE MOUNTING FACILITY |
| Thread Length | 0.312 INCHES NOMINAL SINGLE MOUNTING FACILITY IN |
| Pole Quantity | 3 SINGLE SECTION FRONT |
| Style Designator | TAP, CIRCULAR FRAME |
| Individual Section Quantity | 1 |
| Nonturn Device Type | SLOTTED BUSHING AT 6:00 OCLOCK |
| Nominal Thread Size | 0.375 INCHES SINGLE MOUNTING FACILITY IN |
| Shaft Length | 0.531 INCHES NOMINAL SINGLE ACTUATOR IN |
| Contact Switching Action | MAKES BEFORE BREAKS SINGLE SECTION FRONT |
| Contact Voltage Rating in Volts | 115.0 LOWEST AC VOLTAGE RATING AT SEA LEVEL |
| Contact Voltage Rating in Volts | 500.0 HIGHEST AC VOLTAGE RATING AT SEA LEVEL |
| Thread Class | 2A SINGLE MOUNTING FACILITY A |
| Switch Actuator Positioning Increment | 20.0 DEGREES SINGLE ACTUATOR |
| Switch Actuator Indexing Position Quantity | 4 SINGLE ACTUATOR |
| Thread Series Designator | UNEF SINGLE MOUNTING FACILITY |
| Throw Quantity | 4 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 |
|---|---|
| B19624-3 | Viking Technologies, Ltd. (USA) |
| Reference | Meaning |
|---|---|
| B19624-3 | 3/9 Design control — primary reference Dar Electronics Inc Dba National Radio Co |
NSN 5930-00-770-8420 is a Switch,rotary, manufactured by Viking Technologies, Ltd., classified under FSC 5930, Switches. Status: active.
NSN 5930-00-770-8420 has 1 manufacturer part number on file: B19624-3 (Viking Technologies, Ltd.).
Key specifications for B19624-3: Shaft Type: ROUND, V FLATTED SINGLE ACTUATOR; Overall Height: 1.438 INCHES NOMINAL IN; Shaft Diameter: 0.250 INCHES NOMINAL SINGLE ACTUATOR IN; Switch Contact Basic Design: NONPILE-UP SYMMETRICAL. 23 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.