PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

11993Switch,pressure

Johnston Boiler Company · NSN 5930-01-145-9231 · FSC 5930 · No Item Name Available
Verified by PartsTable
NSN 5930-01-145-9231 — this item is cataloged by the U.S. Government under National Stock Number 5930-01-145-9231. Primary manufacturer part number: 11993.
Features
  • Switch,pressure — FSC 5930
  • Contact Adjustability: DEACTUATION POINT NOT ADJUSTABLE, MANUAL RESET AND ACTUATION POINT ADJUSTABLE, PRESET
  • Pressure Connector Type: PLAIN, THREADED INTERNAL SINGLE CONNECTION
  • Pressure Switch Type: DIFFERENTIAL
  • Body Height: 3.875 INCHES NOMINAL IN
  • Contact Action Stimulus: INCREASE
  • Thread Quantity Per Inch: 18 SINGLE PRESSURE CONNECTION
  • Terminal Type: SCREW
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Switch,pressure, cataloged under National Stock Number 5930-01-145-9231, 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 Johnston Boiler Company. Government technical data includes 23 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5930-01-145-9231
Primary Part Number11993
Item NameSwitch,pressure
FSC / FSG5930 / 59 — No Item Name Available
ManufacturerJohnston Boiler Company
StatusACTIVE
Contact AdjustabilityDEACTUATION POINT NOT ADJUSTABLE, MANUAL RESET AND ACTUATION POINT ADJUSTABLE, PRESET
Pressure Connector TypePLAIN, THREADED INTERNAL SINGLE CONNECTION
Pressure Switch TypeDIFFERENTIAL
Body Height3.875 INCHES NOMINAL IN
Contact Action StimulusINCREASE
Thread Quantity Per Inch18 SINGLE PRESSURE CONNECTION
Terminal TypeSCREW
Contact Voltage Rating in Volts240.0 AC AT SEA LEVEL SINGLE VOLTAGE
Contact Load Current Rating5.0 AMPERES RESISTIVE LOAD SINGLE VOLTAGE
Thread Series DesignatorNPT SINGLE PRESSURE CONNECTION
Mounting MethodINLET CONNECTION
Contact Stimulus Rating125.00 ACTUATION POINT NOMINAL POUNDS PER SQUARE INCH AND 20.00 DIFFERENTIAL POINT NOMINAL POUNDS PER SQUARE INCH
Style DesignatorRECTANGULAR
Frequency in Hertz60.0 SINGLE VOLTAGE
Contact Adjustment Range+20.00 TO 300.00 ACTUATION POINT POUNDS PER SQUARE INCH
Nonpile-Up Contact Arrangement1 POLE, DOUBLE THROW, ONE POSITION MOMENTARY
Thread Length0.750 INCHES NOMINAL SINGLE PRESSURE CONNECTION IN
Nominal Thread Size0.250 INCHES SINGLE PRESSURE CONNECTION IN
Thread Class3B SINGLE PRESSURE CONNECTION
Proof Pressure500.00 POUNDS PER SQUARE INCH LBS
Inside Diameter0.540 INCHES NOMINAL SINGLE CONNECTION IN
Media for Which DesignedGAS
Contact Adjustment TypeEXTERNAL ACTUATION POINT KNOB
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
3110-00-100-309211993 INTERCHANGEABLE
Cone and Rollers,tapered Roller
Acf Industries Inc
6105-00-349-689620-52 INTERCHANGEABLE
Motor,control
Arc Systems Inc
3040-00-356-3522SC-C-70470 INTERCHANGEABLE
Cam,control
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
3510-00-359-9338 INTERCHANGEABLE
Box,air Return
2940-00-562-43975624397 INTERCHANGEABLE
Filter Asy
U S Army Tank Automotive Command Amsta-Im-Mm
5330-01-119-863711993 INTERCHANGEABLE
Seal
Westerbeke Corporation
9540-01-216-5327 INTERCHANGEABLE
Angle,structural
5330-01-271-682911993 INTERCHANGEABLE
Retainer,seal
Flowserve Inc
5998-01-471-5789927439-0164 INTERCHANGEABLE
Circuit Card Assembly
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
5305-01-549-583411993 INTERCHANGEABLE
Screw,machine
Aimpoint Inc Dba Aimpoint Inc
Cross-Reference Index
Part NumberManufacturer
L404F1094 Honeywell Inc Commercial Div (USA)
L404F1094 Honeywell Inc Residential Div (USA)
PT396-007 Johnston Boiler Company (USA)
11993 PRIMARY Johnston Boiler Company (USA)
Related Parts
3110-00-100-3092INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
11993
6105-00-349-6896INTERCHANGEABLE
MOTOR,CONTROL
20-52
3040-00-356-3522INTERCHANGEABLE
CAM,CONTROL
SC-C-70470
3510-00-359-9338INTERCHANGEABLE
BOX,AIR RETURN
2940-00-562-4397INTERCHANGEABLE
FILTER ASY
5624397
5330-01-119-8637INTERCHANGEABLE
SEAL
11993
9540-01-216-5327INTERCHANGEABLE
ANGLE,STRUCTURAL
5330-01-271-6829INTERCHANGEABLE
RETAINER,SEAL
11993
5998-01-471-5789INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
927439-0164
5305-01-549-5834INTERCHANGEABLE
SCREW,MACHINE
11993
5945-01-619-2609INTERCHANGEABLE
SOLENOID,ELECTRICAL
11993

Frequently Asked Questions

What is NSN 5930-01-145-9231?

NSN 5930-01-145-9231 is a Switch,pressure, manufactured by Johnston Boiler Company, classified under FSC 5930 (No Item Name Available). Status: active.

What are the part numbers for NSN 5930-01-145-9231?

NSN 5930-01-145-9231 has 4 cross-referenced part numbers: L404F1094 (Honeywell Inc Commercial Div), L404F1094 (Honeywell Inc Residential Div), PT396-007 (Johnston Boiler Company), 11993 (Johnston Boiler Company).

What NSN replaces 5930-01-145-9231?

There are 11 known substitutes for 5930-01-145-9231: 3110-00-100-3092, 6105-00-349-6896, 3040-00-356-3522 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 11993?

Key specifications for 11993: Contact Adjustability: DEACTUATION POINT NOT ADJUSTABLE, MANUAL RESET AND ACTUATION POINT ADJUSTABLE, PRESET; Pressure Connector Type: PLAIN, THREADED INTERNAL SINGLE CONNECTION; Pressure Switch Type: DIFFERENTIAL; Body Height: 3.875 INCHES NOMINAL IN. 27 total characteristics are documented in the Federal Logistics Information System.

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