The Switch,proximity, cataloged under National Stock Number 5930-00-040-0061, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Topworx Inc. Government technical data includes 8 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5930-00-040-0061 |
| Primary Part Number | 43-100ND20C |
| Item Name | Switch,proximity |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Topworx Inc |
| Status | ACTIVE |
| Terminal Type | SCREW |
| Contact Load Current Rating | 1.56 AMPERES RESISTIVE LOAD THIRD VOLTAGE |
| Contact Load Current Rating | 3.13 AMPERES RESISTIVE LOAD SECOND VOLTAGE |
| Contact Load Current Rating | 6.25 AMPERES RESISTIVE LOAD FIRST VOLTAGE |
| Nonpile-Up Contact Arrangement | 1 POLE, DOUBLE THROW, ONE POSITION MOMENTARY |
| Contact Voltage Rating in Volts | 480.0 AC AT SEA LEVEL SINGLE VOLTAGE |
| Contact Voltage Rating in Volts | 240.0 AC AT SEA LEVEL SECOND VOLTAGE |
| Contact Voltage Rating in Volts | 120.0 AC AT SEA LEVEL FIRST VOLTAGE |
| 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 |
|---|---|
| 43-100ND20C PRIMARY | Topworx Inc (USA) |
NSN 5930-00-040-0061 is a Switch,proximity, manufactured by Topworx Inc, classified under FSC 5930, Switches. Status: active.
NSN 5930-00-040-0061 has 1 manufacturer part number on file: 43-100ND20C (Topworx Inc).
Key specifications for 43-100ND20C: Overall Height: 4.438 INCHES NOMINAL IN; Terminal Type: SCREW; Contact Load Current Rating: 1.56 AMPERES RESISTIVE LOAD THIRD VOLTAGE; Contact Load Current Rating: 3.13 AMPERES RESISTIVE LOAD SECOND VOLTAGE. 8 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.