The Switch,pressure, cataloged under National Stock Number 5930-01-239-1620, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Automatic Switch Company Dba Asco. Government technical data includes 25 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5930-01-239-1620 |
| Primary Part Number | PB11B |
| Item Name | Switch,pressure |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Automatic Switch Company Dba Asco |
| Status | ACTIVE |
| Contact Action Stimulus | INCREASE |
| Terminal Type | SCREW |
| Contact Load Current Rating | 500.0 MILLIAMPERES RESISTIVE LOAD FOURTH VOLTAGE |
| Contact Load Current Rating | 5.0 AMPERES RESISTIVE LOAD FIRST VOLTAGE |
| Contact Load Current Rating | 250.0 MILLIAMPERES RESISTIVE LOAD THIRD VOLTAGE |
| Contact Load Current Rating | 5.0 AMPERES RESISTIVE LOAD SECOND VOLTAGE |
| Mounting Method | BRACKET(S) |
| Contact Adjustment Range | +6.00 TO 60.00 ACTUATION POINT POUNDS PER SQUARE INCH GAGE AND +6.00 TO 60.00 DEACTUATION POINT POUNDS PER SQUARE INCH GAGE |
| Body Height | 4.250 INCHES NOMINAL IN |
| Style Designator | RECTANGULAR |
| Pressure Switch Type | GAGE |
| Contact Adjustment Type | INTERNAL ACTUATION POINT HEX NUT AND INTERNAL DEACTUATION POINT HEX NUT |
| Nominal Thread Size | 5.000 INCHES SINGLE THREADED HOLE IN |
| Body Length | 4.060 INCHES NOMINAL IN |
| Pressure Connector Type | FLARE, THREADED INTERNAL SINGLE CONNECTION |
| Operating Temp Rating | -4.0 FAHRENHEIT MINIMUM AND 140.0 FAHRENHEIT MAXIMUM DEGF |
| Inside Diameter | 0.250 INCHES NOMINAL SINGLE CONNECTION IN |
| Nonpile-Up Contact Arrangement | 1 POLE, DOUBLE THROW, ONE POSITION MOMENTARY |
| Cubic Measure | 0.050 CUBIC INCHES |
| Media for Which Designed | LIQUID |
| Thread Quantity Per Inch | 14 SINGLE THREADED HOLE |
| Thread Series Designator | NPT SINGLE THREADED HOLE |
| Contact Adjustability | ACTUATION POINT ADJUSTABLE AND DEACTUATION POINT ADJUSTABLE |
| Contact Voltage Rating in Volts | 125.0 DC AT SEA LEVEL FOURTH VOLTAGE |
| Contact Voltage Rating in Volts | 250.0 DC AT SEA LEVEL THIRD 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 |
|---|---|
| PB11B PRIMARY | Automatic Switch Company Dba Asco (USA) |
| Reference | Meaning |
|---|---|
| 95823C14 | 5/9 Secondary reference Alfa Laval Inc |
| PB11A | 5/9 Secondary reference Automatic Switch Company Dba Asco |
NSN 5930-01-239-1620 is a Switch,pressure, manufactured by Automatic Switch Company Dba Asco, classified under FSC 5930, Switches. Status: active.
NSN 5930-01-239-1620 has 1 manufacturer part number on file: PB11B (Automatic Switch Company Dba Asco).
Key specifications for PB11B: Overall Height: 5.000 INCHES NOMINAL IN; Contact Action Stimulus: INCREASE; Terminal Type: SCREW; Contact Load Current Rating: 500.0 MILLIAMPERES RESISTIVE LOAD FOURTH VOLTAGE. 25 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.