The Switch,pressure, cataloged under National Stock Number 5930-00-255-9347, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems. Government technical data includes 23 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5930-00-255-9347 |
| Primary Part Number | 266-8399-010 |
| Item Name | Switch,pressure |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems |
| Status | ACTIVE |
| Contact Action Stimulus | INCREASE |
| Terminal Type | CONNECTOR, RECEPTACLE |
| Overall Diameter | 0.680 INCHES NOMINAL IN |
| Proof Pressure | 120.00 POUNDS PER SQUARE INCH LBS |
| Contact Load Current Rating | 2.0 AMPERES RESISTIVE LOAD SINGLE VOLTAGE |
| Mounting Method | CLAMP |
| Thread Length | 0.292 INCHES NOMINAL SINGLE PRESSURE CONNECTION IN |
| Style Designator | CYLINDRICAL |
| Outside Diameter | 0.438 INCHES NOMINAL SINGLE CONNECTION IN |
| Pressure Switch Type | ABSOLUTE |
| Nominal Thread Size | 0.4375 INCHES SINGLE PRESSURE CONNECTION IN |
| Body Length | 1.688 INCHES NOMINAL IN |
| Pressure Connector Type | FLARED, THREADED EXTERNAL SINGLE CONNECTION |
| Operating Temp Rating | -55.0 CELSIUS MINIMUM AND 71.0 CELSIUS MAXIMUM DEGC |
| Nonpile-Up Contact Arrangement | 1 POLE, DOUBLE THROW, ONE POSITION MOMENTARY |
| Media for Which Designed | LIQUID |
| Thread Class | 3A SINGLE PRESSURE CONNECTION A |
| Contact Stimulus Rating | 22.50 ACTUATION POINT NOMINAL POUNDS PER SQUARE INCH ABSOLUTE AND 18.00 DEACTUATION POINT NOMINAL POUNDS PER SQUARE INCH ABSOLUTE |
| Thread Quantity Per Inch | 20 SINGLE PRESSURE CONNECTION |
| Thread Series Designator | UNF 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 |
| Hazardous Locations/environmental Protection | WEATHERPROOF |
| 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 |
|---|---|
| 8A864 | Custom Control Sensors, Llc (USA) |
| 266-8399-010 PRIMARY | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA) |
| Reference | Meaning |
|---|---|
| 266-8399-010 | 5/9 Secondary reference U.S. Government activity |
| 1193P12 | 5/2 Secondary reference U.S. Government activity |
NSN 5930-00-255-9347 is a Switch,pressure, manufactured by Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems, classified under FSC 5930, Switches. Status: active.
NSN 5930-00-255-9347 has 2 manufacturer part numbers on file: 8A864 (Custom Control Sensors, Llc), 266-8399-010 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems).
Key specifications for 266-8399-010: Contact Action Stimulus: INCREASE; Terminal Type: CONNECTOR, RECEPTACLE; Overall Diameter: 0.680 INCHES NOMINAL IN; Proof Pressure: 120.00 POUNDS PER SQUARE INCH LBS. 23 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.