The Switch,flow, cataloged under National Stock Number 5930-01-616-4299, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Harwil Corp. Government technical data includes 12 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5930-01-616-4299 |
| Primary Part Number | Q-4E/2 |
| Item Name | Switch,flow |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Harwil Corp |
| Status | ACTIVE |
| Contact Action Stimulus | INCREASE |
| Terminal Type | CONNECTOR, RECEPTACLE |
| Contact Load Current Rating | 15.0 AMPERES RESISTIVE LOAD SINGLE VOLTAGE |
| Mounting Method | INLET CONNECTION |
| Contact Adjustment Range | +6.0 TO 20.0 ACTUATION POINT GALLONS PER MINUTE |
| Style Designator | RECTANGULAR |
| Contact Adjustment Type | EXTERNAL ACTUATION POINT SCREW |
| Body Length | 4.1875 INCHES NOMINAL IN |
| Nonpile-Up Contact Arrangement | 1 POLE, SINGLE THROW, BOTH POSITIONS MAINTAINED |
| Media for Which Designed | LIQUID |
| Contact Adjustability | ACTUATION POINT ADJUSTABLE |
| Contact Voltage Rating in Volts | 250.0 AC AT SEA LEVEL SINGLE 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 |
|---|---|
| Q-4E/2 PRIMARY | Harwil Corp (USA) |
| Reference | Meaning |
|---|---|
| H350290-109 | 7/2 Vendor item drawing reference Raytheon Company Div Corp |
NSN 5930-01-616-4299 is a Switch,flow, manufactured by Harwil Corp, classified under FSC 5930, Switches. Status: active.
NSN 5930-01-616-4299 has 1 manufacturer part number on file: Q-4E/2 (Harwil Corp).
Key specifications for Q-4E/2: Overall Height: 4.0625 INCHES NOMINAL IN; Contact Action Stimulus: INCREASE; Terminal Type: CONNECTOR, RECEPTACLE; Contact Load Current Rating: 15.0 AMPERES RESISTIVE LOAD SINGLE VOLTAGE. 12 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.