The Switch,proximity, cataloged under National Stock Number 5930-01-281-4164, 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5930-01-281-4164 |
| Primary Part Number | 147329 WITH 30 FT LEADS |
| Item Name | Switch,proximity |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Topworx Inc |
| Status | ACTIVE |
| Terminal Type | WIRE LEAD |
| Contact Load Current Rating | 500.0 MILLIAMPERES RESISTIVE LOAD SECOND VOLTAGE |
| Contact Load Current Rating | 2.6 AMPERES RESISTIVE LOAD FIRST VOLTAGE |
| Features Provided | HERMETICALLY SEALED CASE |
| Operating Temp Rating | -60.0 FAHRENHEIT MINIMUM AND 250.0 FAHRENHEIT MAXIMUM DEGF |
| Nonpile-Up Contact Arrangement | 1 POLE, DOUBLE THROW, ONE POSITION MOMENTARY |
| Contact Voltage Rating in Volts | 480.0 AC AT SEA LEVEL FIRST VOLTAGE |
| Contact Voltage Rating in Volts | 48.0 DC AT SEA LEVEL SECOND 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 |
|---|---|
| 147329 WITH 30 FT LEADS | Topworx Inc (USA) |
| Reference | Meaning |
|---|---|
| 147329 WITH 30 FT CA | C/1 Advisory reference — outside the item-of-supply concept Topworx Inc |
| 1472-1 PIECE 177 | 3/9 Design control — primary reference Gulf Coast Holdings, Inc Dba Unidynamics |
| 1472-1 PIECE 177 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 1472-1 PIECE 177 | 5/9 Secondary reference U.S. Government activity |
NSN 5930-01-281-4164 is a Switch,proximity, manufactured by Topworx Inc, classified under FSC 5930, Switches. Status: active.
NSN 5930-01-281-4164 has 1 manufacturer part number on file: 147329 WITH 30 FT LEADS (Topworx Inc).
Key specifications for 147329 WITH 30 FT LEADS: Overall Height: 1.000 INCHES NOMINAL IN; Terminal Type: WIRE LEAD; Contact Load Current Rating: 500.0 MILLIAMPERES RESISTIVE LOAD SECOND VOLTAGE; Contact Load Current Rating: 2.6 AMPERES RESISTIVE LOAD FIRST 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.