The Switch,rotary, cataloged under National Stock Number 5930-01-256-8540, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch. Government technical data includes 15 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5930-01-256-8540 |
| Primary Part Number | 276777-F2C |
| Item Name | Switch,rotary |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch |
| Status | ACTIVE |
| Nonturn Device Radius | 0.531 INCHES NOMINAL AT 3:00 OCLOCK IN |
| Overall Diameter | 1.380 INCHES NOMINAL IN |
| Contact Load Current Rating | 0.0033 MILLIAMPERES RESISTIVE LOAD HIGHEST DC VOLTAGE RATING AT SEA LEVEL |
| Contact Load Current Rating | 1.0 MILLIAMPERES RESISTIVE LOAD LOWEST DC VOLTAGE RATING AT SEA LEVEL |
| Mounting Method | THREADED BUSHING SINGLE MOUNTING FACILITY |
| Thread Length | 0.435 INCHES MINIMUM AND 0.445 INCHES MAXIMUM SINGLE MOUNTING FACILITY IN |
| Style Designator | CIRCULAR WAFER, BUSHING MOUNT |
| Individual Section Quantity | 2 |
| Nonturn Device Type | TAB AT 3:00 OCLOCK |
| Nominal Thread Size | 0.375 INCHES SINGLE MOUNTING FACILITY IN |
| Contact Switching Action | BREAKS BEFORE MAKES EACH SECTION FRONT |
| Contact Voltage Rating in Volts | 5.0 LOWEST DC VOLTAGE RATING AT SEA LEVEL |
| Contact Voltage Rating in Volts | 10.0 HIGHEST DC VOLTAGE RATING AT SEA LEVEL |
| Thread Class | 2A SINGLE MOUNTING FACILITY A |
| Thread Series Designator | UNEF SINGLE MOUNTING FACILITY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 276777-F2C PRIMARY | Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch (USA) |
| Reference | Meaning |
|---|---|
| 276777-F2X | 5/9 Secondary reference Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch |
| 2903104-12 | 7/2 Vendor item drawing reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
NSN 5930-01-256-8540 is a Switch,rotary, manufactured by Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch, classified under FSC 5930, Switches. Status: active.
NSN 5930-01-256-8540 has 1 manufacturer part number on file: 276777-F2C (Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch).
Key specifications for 276777-F2C: Nonturn Device Radius: 0.531 INCHES NOMINAL AT 3:00 OCLOCK IN; Overall Diameter: 1.380 INCHES NOMINAL IN; Contact Load Current Rating: 0.0033 MILLIAMPERES RESISTIVE LOAD HIGHEST DC VOLTAGE RATING AT SEA LEVEL; Contact Load Current Rating: 1.0 MILLIAMPERES RESISTIVE LOAD LOWEST DC VOLTAGE RATING AT SEA LEVEL. 15 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.
NSN 5930-01-256-8540 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.