The Switch,pressure, cataloged under National Stock Number 5930-01-464-0271, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Pres Air Trol 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5930-01-464-0271 |
| Primary Part Number | PM21140A |
| Item Name | Switch,pressure |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Pres Air Trol Corp |
| Status | ACTIVE |
| Width Across Flats | 0.475 INCHES NOMINAL IN |
| Contact Action Stimulus | INCREASE |
| Overall Diameter | 1.660 INCHES NOMINAL IN |
| Contact Load Current Rating | 21.0 AMPERES INDUCTIVE LOAD SINGLE VOLTAGE |
| Contact Adjustment Range | +4.00 TO 11.00 ACTUATION POINT POUNDS PER SQUARE INCH |
| Style Designator | CYLINDRICAL |
| Pressure Switch Type | DIFFERENTIAL |
| Contact Adjustment Type | EXTERNAL ACTUATION POINT HEX NUT |
| Body Length | 1.450 INCHES NOMINAL IN |
| Media for Which Designed | GAS OR LIQUID |
| Contact Adjustability | ACTUATION POINT ADJUSTABLE, PRESET |
| 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 |
|---|---|
| PM21140A PRIMARY | Pres Air Trol Corp (USA) |
NSN 5930-01-464-0271 is a Switch,pressure, manufactured by Pres Air Trol Corp, classified under FSC 5930, Switches. Status: active.
NSN 5930-01-464-0271 has 1 manufacturer part number on file: PM21140A (Pres Air Trol Corp).
Key specifications for PM21140A: Width Across Flats: 0.475 INCHES NOMINAL IN; Contact Action Stimulus: INCREASE; Overall Diameter: 1.660 INCHES NOMINAL IN; Contact Load Current Rating: 21.0 AMPERES INDUCTIVE 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.