The Switch,toggle, cataloged under National Stock Number 5930-01-166-5681, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Cooper Wiring Devices Inc.. Government technical data includes 10 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 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5930-01-166-5681 |
| Primary Part Number | 277B |
| Item Name | Switch,toggle |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Cooper Wiring Devices Inc. |
| Status | ACTIVE |
| Inclosure Type | FULLY INCLOSED |
| Actuator Inscription | ON/OFF SINGLE ACTUATOR |
| Body Style | HOLE MOUNT |
| Actuator Style | RECTANGULAR |
| Mounting Method | PANEL |
| Actuator Position-Action Relationship | LEFT POSITION MAINTAINED AND RIGHT POSITION MAINTAINED |
| Nonpile-Up Contact Arrangement | 1 POLE, SINGLE THROW, BOTH POSITIONS MAINTAINED SINGLE SWITCH UNIT |
| Maximum Voltage Rating in Volts | 120.0 AC |
| Terminal Type and Quantity | 5 SCREW |
| Contact Load Current Rating at Maximum Rated Voltage | 15.000 AMPERES RESISTIVE AC |
| 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 |
|---|---|
| 277B PRIMARY | Cooper Wiring Devices Inc. (USA) |
NSN 5930-01-166-5681 is a Switch,toggle, manufactured by Cooper Wiring Devices Inc., classified under FSC 5930, Switches. Status: active.
NSN 5930-01-166-5681 has 1 manufacturer part number on file: 277B (Cooper Wiring Devices Inc.).
1 possible match (shared part number, not a government interchangeability claim): 3805-01-539-3925. Verify interchangeability with system specifications before substitution.
Key specifications for 277B: Inclosure Type: FULLY INCLOSED; Actuator Inscription: ON/OFF SINGLE ACTUATOR; Body Style: HOLE MOUNT; Actuator Style: RECTANGULAR. 10 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.