The Switch,toggle, cataloged under National Stock Number 5930-01-558-8924, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Te Connectivity Corporation. Government technical data includes 16 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5930-01-558-8924 |
| Primary Part Number | W51A121B1-10 |
| Item Name | Switch,toggle |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Te Connectivity Corporation |
| Status | ACTIVE |
| Inclosure Type | FULLY INCLOSED |
| Actuator Inscription | OFF AND RESET SINGLE ACTUATOR |
| Body Style | PANEL MOUNT |
| Actuator Style | RECTANGULAR |
| Mounting Method | PANEL AND TERMINAL |
| Actuator Width | 0.394 INCHES NOMINAL IN |
| Body Width | 0.598 INCHES NOMINAL IN |
| Body Height | 0.937 INCHES NOMINAL IN |
| Actuator Position-Action Relationship | UP POSITION MAINTAINED AND DOWN POSITION MOMENTARY |
| Body Length | 1.098 INCHES NOMINAL IN |
| Actuator Length | 0.827 INCHES NOMINAL IN |
| Illuminated Actuator Color | RED SINGLE ACTUATOR |
| Maximum Voltage Rating in Volts | 250.0 AC AND 50.0 DC |
| Terminal Type and Quantity | 3 TAB, SOLDER LUG |
| Actuator Height | 0.118 INCHES NOMINAL IN |
| Contact Load Current Rating at Maximum Rated Voltage | 10.000 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 |
|---|---|
| W51A121B1-10 PRIMARY | Te Connectivity Corporation (USA) |
| Reference | Meaning |
|---|---|
| 3041200 FIND 27 | 5/1 Secondary reference American Systems Corp-Orlando |
NSN 5930-01-558-8924 is a Switch,toggle, manufactured by Te Connectivity Corporation, classified under FSC 5930, Switches. Status: active.
NSN 5930-01-558-8924 has 1 manufacturer part number on file: W51A121B1-10 (Te Connectivity Corporation).
1 possible match (shared part number, not a government interchangeability claim): 5925-01-627-8681. Verify interchangeability with system specifications before substitution.
Key specifications for W51A121B1-10: Inclosure Type: FULLY INCLOSED; Actuator Inscription: OFF AND RESET SINGLE ACTUATOR; Body Style: PANEL MOUNT; Actuator Style: RECTANGULAR. 16 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.