The Switch,push, cataloged under National Stock Number 5930-00-378-0507, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Joslyn Clark Controls, Llc. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5930-00-378-0507 |
| Primary Part Number | 1A3 |
| Item Name | Switch,push |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Joslyn Clark Controls, Llc |
| Status | ACTIVE |
| Inclosure Type | FULLY INCLOSED |
| Actuator Inscription | START FIRST ACTUATOR |
| Actuator Inscription | STOP SECOND ACTUATOR |
| Actuator Style | ROUND, FLUSH |
| Mounting Method | PANEL |
| Switch Actuator Quantity | 2 |
| Nonpile-Up Contact Arrangement | 2 TWO CIRCUIT, DOUBLE BREAK/DOUBLE MAKE, BOTH POSITIONS MAINTAINED SINGLE SWITCH UNIT |
| Maximum Voltage Rating in Volts | 600.0 AC AND 600.0 DC |
| Terminal Type and Quantity | 8 SCREW |
| Hazardous Locations/environmental Protection | DUSTPROOF |
| 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 |
|---|---|
| 1A3 PRIMARY | Joslyn Clark Controls, Llc (USA) |
| 1A3BUL100TYPEEE | Joslyn Clark Controls, Llc (USA) |
| Reference | Meaning |
|---|---|
| EE1A3 | 5/9 Secondary reference Challenger Electrical Equipment Corp Industrial Products Operation |
| EE1A3 | 5/9 Secondary reference Joslyn Clark Controls, Llc |
NSN 5930-00-378-0507 is a Switch,push, manufactured by Joslyn Clark Controls, Llc, classified under FSC 5930, Switches. Status: active.
NSN 5930-00-378-0507 has 2 manufacturer part numbers on file: 1A3 (Joslyn Clark Controls, Llc), 1A3BUL100TYPEEE (Joslyn Clark Controls, Llc).
Key specifications for 1A3: Overall Height: 4.750 INCHES NOMINAL IN; Inclosure Type: FULLY INCLOSED; Actuator Inscription: START FIRST ACTUATOR; Actuator Inscription: STOP SECOND ACTUATOR. 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.