Model: 903991-2

Pressure Switch

Properties:

Hazardous Locations/environmental Protection
Raintight and explosion proof
Overall Length
5.438 inches
Overall Height
3.500 inches
Overall Width
4.500 inches
Unthreaded Mounting Hole Diameter
0.266 inches
Distance Between Mounting Facility Centers
4.875 inches
Pressure Switch Type
Differential
Operating Tempurature Rating
Between -40.0 degrees fahrenheit and 140.0 degrees fahrenheit
Mounting Method
Flange and unthreaded hole
Features Provided
Electrical access port
Contact Action Stimulus
Increase
Thread Size
0.125 inches all pressure connection
Mounting Facility Pattern
Two position in-line
Nonpile-up Contact Arrangement
1 pole, double throw, one position momentary
Terminal Type
Screw
Contact Load Current Rating
15.0 amperes resistive load first voltage
Contact Load Current Rating
15.0 amperes resistive load second voltage
Contact Adjustability
Actuation point adjustable
Contact Adjustment Range
+1.40/+5.50 actuation point pounds per square inch
Contact Adjustment Type
External actuation point screw
Contact Voltage Rating In Volts
125.0 ac at sea level first voltage
Contact Voltage Rating In Volts
480.0 ac at sea level second voltage
Media For Which Designed
Gas or liquid
Style Designator
Cylindrical
Thread Series Designator
Npt all pressure connection
NSN
5930-01-270-6139
Part Number
903991-2
Description
Switch,pressure
CAGE

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 903991-2 NSN 5930-01-270-6139

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:
EH
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
3.0000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
Q
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
061300
UFC:
34410
LTL:
77.5
LCL:
--
WCC:
658
TCC:
Z
SHC:
9
ACC:
Instruments/Radio

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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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