The Switch,pressure, cataloged under National Stock Number 5930-01-539-9512, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Mako Compressors, Llc. Government technical data includes 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5930-01-539-9512 |
| Primary Part Number | 9012-GCW-4 |
| Item Name | Switch,pressure |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Mako Compressors, Llc |
| Status | ACTIVE |
| Contact Load Current Rating | 10.0 AMPERES RESISTIVE LOAD SINGLE VOLTAGE |
| Body Height | 3.600 INCHES NOMINAL IN |
| Style Designator | RECTANGULAR |
| Pressure Switch Type | DIFFERENTIAL |
| Media for Which Designed | GAS OR LIQUID |
| Contact Stimulus Rating | 270.00 DIFFERENTIAL POINT MINIMUM POUNDS PER SQUARE INCH AND 9000.00 DIFFERENTIAL POINT MAXIMUM POUNDS PER SQUARE INCH |
| Contact Voltage Rating in Volts | 480.0 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 |
|---|---|
| 9012-GCW-4 PRIMARY | Mako Compressors, Llc (USA) |
| Reference | Meaning |
|---|---|
| GCW-4-9012 | 5/9 Secondary reference Mako Compressors, Llc |
NSN 5930-01-539-9512 is a Switch,pressure, manufactured by Mako Compressors, Llc, classified under FSC 5930, Switches. Status: active.
NSN 5930-01-539-9512 has 1 manufacturer part number on file: 9012-GCW-4 (Mako Compressors, Llc).
Key specifications for 9012-GCW-4: Overall Height: 3.600 INCHES NOMINAL IN; Contact Load Current Rating: 10.0 AMPERES RESISTIVE LOAD SINGLE VOLTAGE; Body Height: 3.600 INCHES NOMINAL IN; Style Designator: RECTANGULAR. 7 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.