Model: 11993

Pressure Switch

Properties:

Thread Class
3b single pressure connection
Inside Diameter
0.540 inches single connection
Thread Length
0.750 inches single pressure connection
Overall Length
4.500 inches
Overall Height
4.969 inches
Overall Width
2.750 inches
Body Height
3.875 inches
End Application
Used on johnston boiler model 509s-4pc onboard 378 ft coast guard vessels
Pressure Switch Type
Differential
Mounting Method
Inlet connection
Thready Qty Per Inch (tpi)
18 single pressure connection
Contact Action Stimulus
Increase
Proof Pressure
500.00 pounds per square inch
Thread Size
0.250 inches single pressure connection
Nonpile-up Contact Arrangement
1 pole, double throw, one position momentary
Terminal Type
Screw
Contact Load Current Rating
5.0 amperes resistive load single voltage
Contact Adjustability
Deactuation point not adjustable, manual reset and actuation point adjustable, preset
Contact Adjustment Range
+20.00/+300.00 actuation point pounds per square inch
Contact Adjustment Type
External actuation point knob
Contact Stimulus Rating
125.00 actuation point pounds per square inch and 20.00 differential point pounds per square inch
Contact Voltage Rating In Volts
240.0 ac at sea level single voltage
Pressure Connector Type
Plain, threaded internal single connection
Frequency In Hertz
60.0 single voltage
Media For Which Designed
Gas
Style Designator
Rectangular
Thread Series Designator
Npt single pressure connection
NSN
5930-01-145-9231
Part Number
11993
Description
Switch,pressure
CAGE
32332

A switch which is actuated by changes in pressure of any gas or liquid or by changes in a vacuum acting upon its sensing element. Excludes baroswitch; switch, pressure-thermostatic; and switch, sensitive.

Part 11993 NSN 5930-01-145-9231

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
00206
FIIG:
A048B0
Concept No.:
1
App. Key:
D
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
P
PMIC:
A
ESD:
ESD:
MMAC:
CRITL:
X

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Schedule B and Export
  • Schedule B: 8536509065
  • SITC: 77255
  • End Use: Electric apparatus
  • NAICS: 335931
  • USDA: 1

Freight Class: Switches, for a voltage not exceeding 1000 volts, nesoi

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