The Switch,pressure, cataloged under National Stock Number 5930-01-330-8776, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Ashcroft Inc Dba Heise. Government technical data includes 27 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5930-01-330-8776 |
| Primary Part Number | B424B-0/60 |
| Item Name | Switch,pressure |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Ashcroft Inc Dba Heise |
| Status | ACTIVE |
| Frequency in Hertz | 60.0 FIRST VOLTAGE |
| Frequency in Hertz | 60.0 SECOND VOLTAGE |
| Frequency in Hertz | 60.0 THIRD VOLTAGE |
| Contact Action Stimulus | INCREASE |
| Terminal Type | SCREW |
| Mounting Facility Pattern | ISOSCELES TRIANGLE |
| Proof Pressure | 500.00 POUNDS PER SQUARE INCH LBS |
| Contact Load Current Rating | 15.0 AMPERES RESISTIVE LOAD FIRST VOLTAGE |
| Contact Load Current Rating | 15.0 AMPERES RESISTIVE LOAD THIRD VOLTAGE |
| Contact Load Current Rating | 15.0 AMPERES RESISTIVE LOAD SECOND VOLTAGE |
| Contact Load Current Rating | 250.0 MILLIAMPERES RESISTIVE LOAD FOURTH VOLTAGE |
| Contact Load Current Rating | 500.0 MILLIAMPERES RESISTIVE LOAD FIFTH VOLTAGE |
| Mounting Method | BRACKET(S) AND UNTHREADED HOLE(S) |
| Unthreaded Mounting Hole Diameter | 0.260 INCHES MINIMUM AND 0.300 INCHES MAXIMUM IN |
| Style Designator | RECTANGULAR |
| Longest Vertical Distance Between Mounting Centers | 3.310 INCHES NOMINAL IN |
| Shortest Horizontal Distance Between Mounting Centers | 1.625 INCHES NOMINAL IN |
| Pressure Switch Type | GAGE |
| Nominal Thread Size | 0.250 INCHES SINGLE PRESSURE CONNECTION IN |
| Specification/standard Data | 54933-106104 MANUFACTURERS SPECIFICATION CONTROL |
| Body Length | 2.750 INCHES NOMINAL IN |
| Pressure Connector Type | PLAIN, THREADED INTERNAL SINGLE CONNECTION |
| Inside Diameter | 0.250 INCHES NOMINAL SINGLE CONNECTION IN |
| Nonpile-Up Contact Arrangement | 1 POLE, DOUBLE THROW, ONE POSITION MOMENTARY |
| Media for Which Designed | LIQUID |
| Contact Stimulus Rating | 30.00 ACTUATION POINT NOMINAL POUNDS PER SQUARE INCH GAGE AND 25.00 DEACTUATION POINT NOMINAL POUNDS PER SQUARE INCH GAGE |
| Thread Series Designator | NPT SINGLE PRESSURE CONNECTION |
| 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 |
|---|---|
| B424B-0/60 PRIMARY | Ashcroft Inc Dba Heise (USA) |
| Reference | Meaning |
|---|---|
| 106104-001 | 7/2 Vendor item drawing reference North Wind Test Llc |
NSN 5930-01-330-8776 is a Switch,pressure, manufactured by Ashcroft Inc Dba Heise, classified under FSC 5930, Switches. Status: active.
NSN 5930-01-330-8776 has 1 manufacturer part number on file: B424B-0/60 (Ashcroft Inc Dba Heise).
Key specifications for B424B-0/60: Overall Height: 2.310 INCHES NOMINAL IN; Frequency in Hertz: 60.0 FIRST VOLTAGE; Frequency in Hertz: 60.0 SECOND VOLTAGE; Frequency in Hertz: 60.0 THIRD VOLTAGE. 27 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.