Model: 42D249

Pressure Switch

Properties:

Thread Class
3b all pressure connection
Inside Diameter
0.245 inches single connection
Thread Length
0.625 inches all pressure connection
Overall Length
3.375 inches
Overall Width
3.312 inches
Body Diameter
2.375 inches
Body Length
1.750 inches
Unthreaded Mounting Hole Diameter
0.187 inches
Longest Horizontal Distance Between Mounting Centers
2.000 inches
Longest Vertical Distance Between Mounting Centers
2.500 inches
Pressure Switch Type
Differential
Mounting Method
Unthreaded hole
Thready Qty Per Inch (tpi)
20 all pressure connection
Contact Action Stimulus
Increase
Proof Pressure
240.00 pounds per square inch
Thread Size
0.437 inches single pressure connection
Mounting Facility Pattern
Four position rectangular
Nonpile-up Contact Arrangement
1 pole, double throw, one position momentary
Terminal Type
Connector, receptacle
Contact Load Current Rating
0.6 amperes resistive load single voltage
Contact Adjustability
Deactuation point not adjustable and actuation point not adjustable
Contact Stimulus Rating
16.00 actuation point pounds per square inch and 14.00 deactuation point pounds per square inch
Contact Voltage Rating In Volts
30.0 dc at sea level single voltage
Pressure Connector Type
Plain, threaded internal all connections
Frequency In Hertz
60.0 single voltage
Media For Which Designed
Gas or liquid
Style Designator
Cylindrical w/mounting lugs
Thread Series Designator
Unf all pressure connection
NSN
5930-01-041-9190
Part Number
42D249
Description
Switch,pressure
CAGE
09049

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 42D249 NSN 5930-01-041-9190

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:
U
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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