The Switch,pressure, cataloged under National Stock Number 5930-01-491-6668, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Johnson Controls Inc Control Products Div. Government technical data includes 13 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5930-01-491-6668 |
| Primary Part Number | P28NA-8D |
| Item Name | Switch,pressure |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Johnson Controls Inc Control Products Div |
| Status | ACTIVE |
| Contact Action Stimulus | DECREASE |
| Terminal Type | SCREW |
| Contact Load Current Rating | 15.0 AMPERES RESISTIVE LOAD SINGLE VOLTAGE |
| Mounting Method | SURFACE |
| Body Height | 3.250 INCHES NOMINAL IN |
| Style Designator | RECTANGULAR |
| Pressure Switch Type | DIFFERENTIAL |
| Operating Temp Rating | 32.0 FAHRENHEIT MINIMUM AND 104.0 FAHRENHEIT MAXIMUM DEGF |
| Nonpile-Up Contact Arrangement | 1 POLE, SINGLE THROW, BOTH POSITIONS MAINTAINED |
| Media for Which Designed | LIQUID |
| Contact Stimulus Rating | 8.00 DIFFERENTIAL POINT MINIMUM POUNDS PER SQUARE INCH GAGE AND 70.00 DIFFERENTIAL POINT MAXIMUM POUNDS PER SQUARE INCH GAGE |
| Contact Adjustability | DEACTUATION POINT NOT ADJUSTABLE, MANUAL RESET |
| Contact Voltage Rating in Volts | 12.0 DC 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 |
|---|---|
| P28NA-8D PRIMARY | Johnson Controls Inc Control Products Div (USA) |
| Reference | Meaning |
|---|---|
| 500K1910 | 7/9 Vendor item drawing reference U.S. Government activity |
NSN 5930-01-491-6668 is a Switch,pressure, manufactured by Johnson Controls Inc Control Products Div, classified under FSC 5930, Switches. Status: active.
NSN 5930-01-491-6668 has 1 manufacturer part number on file: P28NA-8D (Johnson Controls Inc Control Products Div).
Key specifications for P28NA-8D: Overall Height: 5.320 INCHES NOMINAL IN; Contact Action Stimulus: DECREASE; Terminal Type: SCREW; Contact Load Current Rating: 15.0 AMPERES RESISTIVE LOAD SINGLE VOLTAGE. 13 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.