PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

668440-1Switch,pressure

Lockheed Martin Corp · NSN 5930-00-711-5958 · FSC 5930 · No Item Name Available
Verified by PartsTable
NSN 5930-00-711-5958 — this item is cataloged by the U.S. Government under National Stock Number 5930-00-711-5958. Primary manufacturer part number: 668440-1.
Features
  • Switch,pressure — FSC 5930
  • Terminal Type: CONNECTOR, RECEPTACLE
  • Operating Temp Rating: -65.0 FAHRENHEIT MINIMUM AND 275.0 FAHRENHEIT MAXIMUM DEGF
  • Width Across Flats: 1.500 INCHES NOMINAL IN
  • Contact Adjustability: DEACTUATION POINT NOT ADJUSTABLE AND ACTUATION POINT NOT ADJUSTABLE
  • Sensing Element Burst Pressure: 7500.00 POUNDS PER SQUARE INCH LBS
  • Contact Stimulus Rating: 1109.00 DEACTUATION POINT MINIMUM POUNDS PER SQUARE INCH
  • Nonpile-Up Contact Arrangement: 1 POLE, SINGLE THROW, NORMALLY CLOSED, MOMENTARY ACTION
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Switch,pressure, cataloged under National Stock Number 5930-00-711-5958, is classified within Federal Supply Class 5930 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Lockheed Martin Corp. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5930-00-711-5958
Primary Part Number668440-1
Item NameSwitch,pressure
FSC / FSG5930 / 59 — No Item Name Available
ManufacturerLockheed Martin Corp
StatusCANCELLED
Terminal TypeCONNECTOR, RECEPTACLE
Operating Temp Rating-65.0 FAHRENHEIT MINIMUM AND 275.0 FAHRENHEIT MAXIMUM DEGF
Width Across Flats1.500 INCHES NOMINAL IN
Contact AdjustabilityDEACTUATION POINT NOT ADJUSTABLE AND ACTUATION POINT NOT ADJUSTABLE
Sensing Element Burst Pressure7500.00 POUNDS PER SQUARE INCH LBS
Contact Stimulus Rating1109.00 DEACTUATION POINT MINIMUM POUNDS PER SQUARE INCH
Nonpile-Up Contact Arrangement1 POLE, SINGLE THROW, NORMALLY CLOSED, MOMENTARY ACTION
Style DesignatorCYLINDRICAL
Contact Voltage Rating in Volts27.0 DC AT SEA LEVEL SINGLE VOLTAGE
Inside Diameter0.250 INCHES NOMINAL SINGLE CONNECTION IN
Pressure Connector TypePLAIN, UNTHREADED INTERNAL SINGLE CONNECTION
Mounting MethodCLAMP
Pressure Switch TypeGAGE
Proof Pressure4500.00 POUNDS PER SQUARE INCH LBS
Contact Action StimulusINCREASE
Contact Load Current Rating5.0 AMPERES RESISTIVE LOAD SINGLE VOLTAGE
Media for Which DesignedLIQUID
Body Length2.620 INCHES NOMINAL IN
Features ProvidedELECTRICAL BOX CONNECTOR
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 6
5950-00-645-5396324C547 INTERCHANGEABLE
Transformer,discriminator
General Dynamics Mission Systems, Inc. Dba Gdms
5330-00-901-0663 INTERCHANGEABLE
Gasket
5315-01-160-040314037964 INTERCHANGEABLE
Pin,straight,headed
New Venture Gear Inc New Process Gear Div
5331-01-188-307115374 INTERCHANGEABLE
O-Ring
Parker-Hannifin Corporation Dba Racor Division Div Racor Division
5950-01-417-204605016 INTERCHANGEABLE
Transformer,current
Magnetika Inc
5305-01-647-827815374 INTERCHANGEABLE
Screw,cap,hexagon Head
Fastenal Company Dba Fastenal Co
Cross-Reference Index
Part NumberManufacturer
15374 Hydra-Electric Company Dba Hydra-Electric Co (USA)
668440-1 PRIMARY Lockheed Martin Corp (USA)
98G7 Custom Control Sensors, Llc (USA)
Related Parts
5950-00-645-5396INTERCHANGEABLE
TRANSFORMER,DISCRIMINATOR
324C547
5330-00-901-0663INTERCHANGEABLE
GASKET
5315-01-160-0403INTERCHANGEABLE
PIN,STRAIGHT,HEADED
14037964
5331-01-188-3071INTERCHANGEABLE
O-RING
15374
5950-01-417-2046INTERCHANGEABLE
TRANSFORMER,CURRENT
05016
5305-01-647-8278INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
15374

Frequently Asked Questions

What is NSN 5930-00-711-5958?

NSN 5930-00-711-5958 is a Switch,pressure, manufactured by Lockheed Martin Corp, classified under FSC 5930 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5930-00-711-5958?

NSN 5930-00-711-5958 has 3 cross-referenced part numbers: 15374 (Hydra-Electric Company Dba Hydra-Electric Co), 668440-1 (Lockheed Martin Corp), 98G7 (Custom Control Sensors, Llc).

What NSN replaces 5930-00-711-5958?

There are 6 known substitutes for 5930-00-711-5958: 5950-00-645-5396, 5330-00-901-0663, 5315-01-160-0403 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 668440-1?

Key specifications for 668440-1: Terminal Type: CONNECTOR, RECEPTACLE; Operating Temp Rating: -65.0 FAHRENHEIT MINIMUM AND 275.0 FAHRENHEIT MAXIMUM DEGF; Width Across Flats: 1.500 INCHES NOMINAL IN; Contact Adjustability: DEACTUATION POINT NOT ADJUSTABLE AND ACTUATION POINT NOT ADJUSTABLE. 20 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5930-00-711-5958 still in active supply?

NSN 5930-00-711-5958 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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