The Switch,pressure, cataloged under National Stock Number 5930-00-081-3161, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Lockheed Martin Corporation Div Rms - Mitchel Field. Government technical data includes 18 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5930-00-081-3161 |
| Primary Part Number | 778320 |
| Item Name | Switch,pressure |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Lockheed Martin Corporation Div Rms - Mitchel Field |
| Status | ACTIVE |
| Contact Action Stimulus | INCREASE |
| Terminal Type | TAB W/SCREW |
| Contact Load Current Rating | 500.0 MILLIAMPERES RESISTIVE LOAD SINGLE VOLTAGE |
| Mounting Method | INLET CONNECTION |
| Style Designator | RECTANGULAR |
| Pressure Switch Type | GAGE |
| Contact Adjustment Type | EXTERNAL ACTUATION POINT SCREW |
| Nominal Thread Size | 0.250 INCHES SINGLE PRESSURE CONNECTION IN |
| Body Length | 2.500 INCHES NOMINAL IN |
| Pressure Connector Type | GASKET SEAL, THREADED INTERNAL SINGLE CONNECTION |
| Inside Diameter | 0.250 INCHES NOMINAL SINGLE CONNECTION IN |
| Nonpile-Up Contact Arrangement | 2 POLE, SINGLE THROW, NORMALLY CLOSED, MOMENTARY ACTION |
| Media for Which Designed | GAS OR LIQUID |
| Contact Stimulus Rating | 50.00 ACTUATION POINT NOMINAL POUNDS PER SQUARE INCH AND 80.00 DEACTUATION POINT NOMINAL POUNDS PER SQUARE INCH AND 30.00 DIFFERENTIAL POINT NOMINAL POUNDS PER SQUARE INCH |
| Thread Quantity Per Inch | 18 SINGLE PRESSURE CONNECTION |
| Thread Series Designator | NPT SINGLE PRESSURE CONNECTION |
| Contact Adjustability | DEACTUATION POINT NOT ADJUSTABLE AND ACTUATION POINT NOT ADJUSTABLE |
| Contact Voltage Rating in Volts | 28.0 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 |
|---|---|
| 778320 | Lockheed Martin Corporation Div Rms - Mitchel Field (USA) |
| Reference | Meaning |
|---|---|
| 830B2-210 | 5/9 Secondary reference Rockwell Automation, Inc. Dba Rockwell Automation |
| 830-B5210 | 3/9 Design control — primary reference Rockwell Automation, Inc. Dba Rockwell Automation |
NSN 5930-00-081-3161 is a Switch,pressure, manufactured by Lockheed Martin Corporation Div Rms - Mitchel Field, classified under FSC 5930, Switches. Status: active.
NSN 5930-00-081-3161 has 1 manufacturer part number on file: 778320 (Lockheed Martin Corporation Div Rms - Mitchel Field).
Key specifications for 778320: Overall Height: 2.750 INCHES NOMINAL IN; Contact Action Stimulus: INCREASE; Terminal Type: TAB W/SCREW; Contact Load Current Rating: 500.0 MILLIAMPERES RESISTIVE LOAD SINGLE VOLTAGE. 18 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.